EFI fuel tank module for stock tanks

I've started this. Picture of spare tank hacked off on passenger side. Will get some 18/20 gauge and use a bread roller to put some rigidity to it too make replacement panel. This tank metal looks galvanized so ill probably get galvy. I hate welding galvy. Still getting pump figured, ill make a "slosh" tray once i get one.... what do you guys think? 1" tall with a drain hole on the high side? How are those designed? Enjoying this.