how hard to find

[71'tahoe]

Hey guys,
thought you could help.I'm looking to build a 47-55 1st series some time this summer.Here what i have so far.I bought an origanal frame for $300.00 I have also purchased a bed for $100.00.How hard will it be to find a good cab,with good title?My plan is to leave the body alone as the differnt colors will add charactor,I want disc brakes front drum rear,like to lower it a bit and drive it do death.The engine is a six that has a stuck valve but i have a redone 283 small block form a 65 nova and a 350 turbo tranny.any help you guys could give would be great.Also thought about the s-10 frame swap is that really as good as some make it out to be,Ive seen it in a couple of magines and so what speed shop did one that was in the readers rides in the new truckin.I have a long bed frame that i could use.I just dont. Thanks again