Which of these rearends?

[Matt300ZXT]

I'm looking for one to put in my 54 and had some local guys offer some up. One guy has one from an 87 full size conversion van that's an 8.5" (one guy on the local forum said that'd be a good one), he also has a 76 Camaro he's parting out still with front brakes, so I could get front AND rear brakes at the same time out of that car. Also another guy has a 74 leaf suspension Nova rearend for $75. Or should I hold out for an S10 4x4?

Ideally, I want a rear end that'll allow me to run something bigger than an 8" wheel. I'm really checking into those Summit Racing wheels that look like the Torq Thrusts, an 18/20 setup. The 18s are 8.5" and the 20s I'd want 9.5".