Why not use my ProTracker v2.3D clone for OS X/Windows/Linux?
Instructions on how to compile (below the tree): https://sourceforge.net/p/protracker/code/HEAD/tree/
It supports loading RAW/IFF/WAV samples, as well as save to either of those formats. It also has a MOD2WAV rendering button.
EDIT: Also worth mentioning that it aims to be as close to the real deal that I can get it, even the sound is much closer to a real Amiga than most MOD players (thank you, band limited steps/BLEP).
It saves MODs just like PT would, and the MOD replayer supports all of the quirks (that I know of).