I looked it over and I really like some of the things he's added! Subbing isn't really my kink so there's a lot I wouldn't have considered.
It is possible, but to create a patch file with the mod would involve rewriting a lot of the author's code as he's touched a lot of areas that my code does as well. I don't touch other modder's code without permission, just out of respect for what they are working on. I've added the tags ###---Added by Expansion---### and ###---End Expansion---### to each section that my code changes in the vanilla code, so it normally wouldn't be that hard to do a search, copy, and paste of the sections into the author's code for the script files we both touch. That would be up to the other author's willingness to throw that patch together or approve others working on a patch in their stead.
If he approves it, I don't mind helping bring over some of the functions and options into Aric's or working together to create a patch file, but from the similar post asking this on his thread it doesn't sound like he's currently interested in that option. If that changes or he wants to mess with my code for his mod, that's fine by me! Until then, I can't really do much about the lack of compatibility. It sounds like an either/or scenario for now, but maybe that will change in the future!