There are lots of Nessmuk patterns out there, but if you will be carrying a fixed blade for hiking and fishing, as well as handyman tasks, I would look at a fixed blade with a length of 3-4". I had Scott Gossman make a customized Kephart pattern for me with an approx 3.5" blade, before he stopped taking orders. I would look at offerings from him, David Farmer, any used Blind Horse knives you can find (they made the MUK and Camp MUK, both Nessmuk designs). JK makes some good EDCs. I've had a couple Nessmuks, not my thing but good blades. Fiddleback forge, most makers on here will have a basic EDC blade that will double duty as an EDC and game preparer and bushcraft tool.
As for folders, I am partial to single blades, but you can't go wrong with a Great Eastern cutlery trapper or a Great Eastern boys knife. The 73 trapper comes with either a single or double blade model, the boys knife has either a single blade or double blade, and numerous blade shape options.
A good and cheap Nessmuk trio would be a Mora, a SAK and an Estwing hatchet. The trio that I have tried is my Gossman mini Kephart (with 4" blade), my two blade GEC 73 I got from him, and a GB woodsmans axe. Add a .22 or .410 plinker to that, and you are all set. Now I just need to chip away at my girth to get that set out there!