I quite like the Master Hunter and have an old one in CarbonV.
Small EDC; Ill recommend Spyderco StreetBeat, MISSION Ti MPU and/or BK14.
With your budget concerns, you might want to disregard the Ti MPU.
The StreetBeat can be had in a 'lightweight' version. Not much difference in weight IIRC.
As for unobtrusive carry of the Master Hunter, I heartedly recommend sash carry with a static line.
Joe Paranee from this forum has written on the subject of this vintage carry style, which works as well today, as it did a hundred yrs ago or more.
If interested, maybe search his excellent writings and not least videoes on the subject.
After reading his posts on sash carry, I made my own Q&D sheath to experiment with the concept.
I dont have a sash carry sheath for my CS MH but just now snapped a few pics with a coffin handle bowie to demonstrate the sash carry concept.
The beauty of sash carry is, that you unobtrusively can carry far larger knives than the MH and the bowie shown here.
Also check out Mike Sastre's writings/videos on the subject of unobtrusively carring a large knife.
Anyway, on to the pic/sash carry demo.
Stage one:
Sheath goes inside the belt. It has a button, which ensures, that the sheath doesnt submarine under the belt.
You adjust the carry for your activity, driving/sitting position and/or build.
Here just one position slightly to the back of the hip bone.
The static line is attached to bottom of the sheath and goes over the top of the sheath on the outside of the belt as shown.
Goes without saying, that the length of the line or cord should be adjusted accordingly.
Stage two;
When you draw the knife, you just grip only the handle. No need to fumble with the sheath or hold it to separate knife and sheath - that is the beauty of it.
Should the fit be tight, the sheath follows the knife part way but is held to the belt by the static line.
Stage three;
Sheath simply falls free and you only need one hand to draw the knife, should you have a pesky office memo in the other hand.
If you have the time or the inclination, you just ease the knife out of the sheath and it stays put.
My sheath most often stays in the belt as its not a tight fit. This just a personal preference. The fit can be as tight as your sheath and/or belt allows.
Sash carry is a very comfortable, fast and unobtrusive way of carrying a knife.
Not having any desire to knife fight, I only use this mode, for when I legally want to carry for example this wood chopping/fire prepping bowie into the woods without alarming passers by and without listening to the inane comments.
You adjust the position of the sheath as needed and you get used to sash carry very fast.