As far as I was aware, the upper-level techs did indeed have their proper graphics offline, it just took forever to grind them to the point where you'd actually see them. They did not have the proper growth, however, as they were still considered part of the 21+ tier (most obvious with Megid, which never got its incapacitate level 4).
Har / Quick and Har / Smart are actually both in the offline data already, just don't think they drop anywhere. They'll be available, there's just a fairly decent chance they'll penalize you a bit more sharply (having choices doesn't work if one of them is always the right one).
For the time being, there's something that'll let you edit textures, but it's not really in a state where it's ready to release to the public. The goal's to make it compatible with all (or most, since a few are incredibly niche) data files used in the game, and it's still missing a significant number of them, and I suspect it still wants to corrupt files randomly. Adding new weapons is still a bit of a pipedream, but one that has useful ramifications if I can get it to work, so it's one of the things I'm going to be looking into during this. A new weapon is pretty much just a model with a few stats filled in, after all, and I can already fill in the stats.
Sorry, for the time being, I'm pretty much keeping this down to just a couple people helping out (namely, the ones who I've known since coming here and whose input I know I can trust).


