Spare tire, space saver donut options?

I got mine from a 88 Dodge Diplomat,RWD Chrysler New Yorker. Also I hear the the Ford Crown Vic's work. Gives you a nice flat floor.
Cool, didn't even know those cars had a space saver option, that's what I'd like to find to keep it all mopar, can get the jeep ones fairly easy down here but wasn't sure they'd clear the front brake callipers?