It's the end-user part of the unified modding system I've been working on, it's easy to set up, and it installs any mod designed to work with it. I've released the patcher for my Legend of Dragoon Modding System (LODModS). Please be sure to have the most recent versions of everything before trying to install any mods.
All mods have been updated to use this new patcher version, as I unfortunately had to make some changes that render older mod versions incompatible. The inventory mod is now included in the Mod Pack as well. UPDATE: I just released a mod to increase the item capacity from 32 to 64, as well as the most recent version of the patcher (v1.3).