While I wait for a response I began looking on my own, and came across the Inventory Overhaul on the EQEnum Gitbook. I'm not sure how old this project is, but it is fascinating. You guys certainly have good plans and I hope they turn out well. The private server I'm doing is just for my wife and I to live out our nostalgia, so little things like bag space are not a huge priority. We've adapted to pre-SoD elements in our RoF2 environment, not having mercs, having boosted weapons (like epics that are actually epic) and beastlords with 30k complete healing because I like to tinker. I am probably going to start taking stabs at random files soon, unless you guys can tell me which ones specifically need to be addressed. It might be on the Internet somewhere, but I've made things happen with less, though the wasted time was unwelcome. I wasn't expecting an easter egg hunt, but with my bum leg I'm more than happy to play.
Just knowing it can be done and that others have done it is inspiring!