Alkaloid,
I didn't make replacement packages with accessories yet, so here are just a few thoughts.
From what I know and experimented with other types of packages, you just need to make the game read your modified data instead of the defaults, in this case the material definitions, and the textures for those you changed; you shouldn't have to do anything with the other files. Or did you edit stuff in the property sets?
Without further indications, I'd say that you need to extract just the material definitions and texture files - since I hate the Resource Finder (too slow on my comp) I can't give you a step by step about that LOL
Then you can put all the extracted stuff in a single package to regroup the whole set of replacements, or put them in separate packages for smaller files - it's up to you; redo the same edits you made to your glasses, don't change or rename anything else and it should be ok.
I only edited the material definitions and textures. ^_^
See, that's what's messing me up. There are several incarnations of the material definitions coming up, and....
:violent2:
Sorry, my head just exploded. I guess at this point, I'm just going to extract everything I can find and try different things until something works.