Well when I was 16 back in '86 I bought a colliseum bass rig with the 2 folded 18's cabs, it was an amazing rig. I paid $600 for it, I thought it was well worth it.They were in almost perfect condition & sounded like God!
Good luck on getting these, I had to sell mine a few years later & have regreted it ever since although they are a big pain in the ass to move around from gig to gig. It was always fun to hear the reactions from the crowd when they saw that tower-o-power on stage, they usually took a few steps back.
-Cheers