The Charlie's pan on the left is mine. It is currently installed on my '70 cuda...so yeah, it'll fit an E body, lol.
It holds 8 quarts in just the pan. up
The windage tray is VERY simple. Get a flat sheet of aluminum, bend it on one side, and drill some holes.

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax