I've got a SM465 and NP205 out of my 83 GMC K30.
HERE is the Craigslist ad for more details and pics.
I think I'm asking $550 for both on there but that's negotiable. ;)
I'd also trade for some 20" 8x6.5 wheels, guns (ruger lcp, S&W bodyguard, saiga 12 or 20, ar-15 or parts, russian SKS...