In reards to the handles, bare tangs are pretty much non functional for anything but the lightest of work, yes you can wrap them, but unless you are fairly skilled and can do a deent wrap you will end up with something far less ergonomic and secure than a decent full shaped grip. Plus you have all the hassle of cleaning the cord, work on some sappy woods, clean a few fish or small game, get dirty in any way and now try to get the handle decently clean. Look into FRN scales or rubber grips for cost.
The grind is one of Brends trademarks, and quite frankly people seem to love it, Roberston was for years calling it the ultimate tactical blade, I don't see that at all. The long top edge really hampers a lot of use, hitting the spine to cut through heavy material, holding the spine for various shaping / scraping, or even blade grips for precision carving / cutting. Plus with dual grinds you end up with each grind being fairly shallow which produces a fairly severe wedge shape hampering cutting ability. Just look at how shallow the grind runs near the choil, and this is why most precision carving would want to be done.
As for steel, if you want to keep cost down, look towards easier to machine and cheaper to buy steels. For tool steel, something simple like 1050, and for stainless 420HC. This are much more suitable for 1/4" heavy users than D2 and S30V anyway, being far tougher, more ductile and far easier for the user to maintain.
-Cliff