New here... Looking for a fuel injection rear mount gas tank

[LaidOut74C10]

First off, great forum! I just picked up a 74 2wd standard short fleet and have most off my parts lined up. The one part I can't find is a rear center mount fuel tank for a fuel injection application. One that accepts a tank mounted fuel pump. Any help is appreciated.

The plan so far for the build is....
408 LS stroker.
Built 4L80E.
Porterbuilt Dropmember.
KP component cantilever rear setup. (already have)
20 or 22 x 8.5's up front and 22-24 x 12's in the rear.
14" or bigger front brakes and 13" in the rear.
Stock blue and white repaint with all trim, moldings, and bumpers.
Close to stock interior. I'm gonna reshape the bench to fit a tall guy. (me)

This is what I picked up