Installing UFB+Retro Board combo in a TE2+

I’m looking to install a Brook UFB+Retro Board in a TE2+ (using the TE2+ EZ Mod board, if possible). I was looking on Arcade Shock, but they have a lot of different bundles, and I wasn’t sure what I need to buy. Has anyone done this mod already that can share some insight?

I’m also wondering if there’s room to install a RJ-45 port on the front left of the stick, mirroring where the Start button is on the front right side. (The stock PCB is there right now, but I’m thinking that I can move things around when I install the UFB.) I know some people are removing Select/Share and installing the RJ-45 in that hole, but I’d like to keep all my button functionality.