Playing with junk.....And building cars that never were....

I have a buddy that owns a junkyard and we were talking about building some "cars that never were" out of clunkers.  The first ones that come to mind are GM musclecar wagons. The easiest of course are the Pontiac LeMans and Olds Cutlass wagons built from 1968-72. Back in the days before SUVs were rampant a lot of people that towed trailers used wagons. Thus, while the two-door coupes were mostly 350 models with drum brakes, a lot of LeMans and Cutlass wagons had 400 or 455 cubes under the hood, TH400s, and front disc brakes as standard equipment. It wouldn't take much trim from Year One to make a "GTO", "Judge"  or "442" or "Hurst / Olds" wagon.  You could also build an SS396 or SS454 Chevy wagon, but these may cost more-for some reason-unlike their Pontiac and Olds cousins, most Malibu wagons had 350 motivation. Which means you'd have to find a suitable Rat motor and swap it in, besides doing the body and interior trim. They'd be a great ride-a wagon actually makes a good drag racer because of it's excellent weight distribution, and you'd have the passenger and storage room of a modern SUV.  Another good GM toy would be a "GTO" "442" or Buick GS El Camino. Buy a beater '68-72 El Camino and then put the appropriate front clip and drivetrain on it. You could probably build a 455 Olds, Buick or Pontiac version for WAAY less than a decent SS396 or 454 version would cost to buy. Also way cool would be an "X" body ( Chevy Nova, Pontiac Ventura, Olds Omega ) styled like a '60s Trans-Am or '70's IROC racer. Any suspension or brake upgrades that fit a Camaro / Firebird will fit these cars, so making a real handling "G" machine out of one is easy. Monster rubber, radiused and flared fenderwells, maybe even a T/A style "shaker" hood scoop. The Ventura would be a great sleeper because Pontiac V8's are externally identical from a 326 to a 455. A 400 or 455 would literally drop in place of the 350 that some of them have. What about a 403 powered Olds Omega with Trans-Am style suspension?  Mastermind