No response, I hope this place isn't abandoned. Anyways I think I may have answered my own question, most of them at least. There were a few I couldn't figure out, like "d2te_0-based_hacks.txt" and "dune_niggas.zip", as they had no included instructions.
I've been exploring this forum for the last few days. Found a few mistakes in some of you threads. Got nothing better to do atm so I'll list them here (better than bumping each individual thread). You mentioned in the gus drivers thread that the original gravis drivers for dune 2 didn't work in DOSBox; I found they actually do but, technically, the original "driver" you linked isn't really a driver, it's an installer. The drivers can be found here, the AIL/DIGPAK 1.0 and .96; they have to be placed in the Dune II directory before you run the installer. Either way, I have issues with the digital gus driver: speech is garbled in the intro to the game. I also have occasional issues with the MIDI driver in that some times notes get stuck. You also mentioned issues where the Tandy driver for Dune wouldn't work in DOSBox, found a fix for that here. I also recall a thread where a user had issues getting the game to work on his AWE32(something), possible fix here.