Ok the release went well... still one or two bugs to squash, but I think I can start working on new features again, thus more wip.
I'm looking at the textures I'll have to blank out for the eventual HUD replacement. I did a test and all the tachometer packages are identical, save for the textures themselves, so I can do a single blank tachometer package and just copy-paste to all the others. All the general HUD textures appear to be within spr_SPRANI_ETC_CVT_Xxst. That's simultaneously good, because I don't have to look all over for them, and bad, because that's one of the textures I already re-worked for the arcade buttons and I'll have to do every language version of it.
The plan is to do hd versions of the tachometer, the shift array, the speed, the time remaining and the time elapsed. The other textures in the hud are all animated, so I'm uncertain if they can be replaced using the overlay method.