As YoYoBallz mentioned in the other thread, KaKaRoTo has offered to continue developing Rcomage (thanks! especially for dealing with my mess of code!)
The Github repository can be found here: https://github.com/kakaroto/RCOMage

Changes I've made before giving the code to him:
- slight change to VSMX handling
- enable RLZ compression (no decompression though)

Also will need to include the newer INI files.

I'm sure this will bring about more improvements (especially since he seems to be a more experienced developer than myself).