Look, I hate to be the a**hole here. I took the liberty of reading your other posts and whatnot, and think you are putting the cart before the horse.
First, I will bet you will not just buy tools, set up shop (especially in an apartment), and start turning out the best thing since sliced bread without any effort. Your first knives will look like crap, and probably perform even worse. No offense, it is just the way it is. It takes a good deal of time to really get a total grasp of design, performance, and put all of these things in a finished product. This IS NOT going to be a profirable business venture right out of the gate. Even mastersmiths aren't what I would consider well off, and most are just getting the bills paid for the most part.
I personally take offense to the implication that you think you can just step up and do what we all do with the same level of skill and expertise without even a day of practice. Trust me, it may be one of the oldest tools known to man but this is FAR from easy... And I will guarantee if you try to charge money for your blades, and someone says "how long you been making knives?" the answer of "two weeks" will have them walking.... I wouldn't let someone fix my car if they just bought their first set of tools and a haynes manual. Ask a lot of questions and learn from other's mistakes so you don't have to repeat them for yourself as well. Experienced advice is usually free and indispensable....
In defensive tactics the usual quote is 3000 repetitions for something to become muscle memory. Plan on at least that many repetitions on the grinder before you can make a repeatable pass in both directions reliably.
Then there is the dust and noise issue. You won't be able to flood the workspace like a machining process, grinders don't work like that. Nor will you be able to use a vacuum cleaner or even good dust collection system and get every bit of dust. And trust me, metal dust gets everywhere in a hurry and doesn't like to come out. Then there is the noise. A lot of what we do is very noisy. Whether it is the hammer strike of a forfing process or the high speed whir of the belt. I have a neighbor about 1/4 mile away and over a small hill who knows what I do in my shop. He can hear my hammer strikes like nobody's business, and has said he can sometimes hesr my propane forge running if the traffic in the area is light... A couple of eggcrates won't stop that kind of noise...
If you really want this to be your chosen profession, you will need to pay your dues. Go to hammer-ins, find other makers in your area, and practice everything by making some things for yourself. It will come if it is meant to be. And if you make knives that you truly put your heart and sole into you can be proud of what you put out there. I am working on a tactical knife now for a friend, and including wood, cardboard and aluminum examples of the design, a multitude of drawings and fittings and steel testing and selection there is a lot of time spent in the design. I even made three copies to destructively test two... I won't let him stake his life on something I made without being damn sure it won't hold up. You have to make damn sure every knife you make will do exactly what you report it to do, even if it is just to slice tomatoes. Otherwise you will be just another one of the toads that occupy fleabay and the like calling themselves master fartsmiths and selling hacked up poor quality junk as custom knives... All it does is potentially turn a customer who is new to this world and looking for their first quality custom blade away for life. On top of that, customers are hard to please. Every knife you send out needs to be flawless. It has to be as good as or better than a factory blade as that is what they are used to and expecting...
I am not trying to bash you, or to turn you away, but just a dose of reality. This is a learning process and this site is a fantastic resourfe for doing so. Settle in and it will be a helluva ride. I am sure everyone here can tell you what an experience getting started in this is, and tell you how rewarding and satisfying it is to finish your first blade. There is nothing like putting the last touch on a blade and taking it all in...
My suggestion is go get some quality materials (no crap hardware stoor plain steel or old lawnmower blades) a handful of files and a high tension hacksaw with good blades. Make your first knife, start a WIP thread here if you want ongoing input, and let us critique your work. If it meets with the knowledgeable critique here it will probably be good to go...
Good luck and have fun...