I bought a brass and copper 4 row radiator from Rock Auto last year. I haven't used it as it sits up too high but I am going to hang onto it. It was on closeout and priced cheap, let me try and find the link.
http://www.rockauto.com/en/parts/vis...,radiator,2172
I am hanging onto my original radiator and later on I am getting it recored. I ground out the rivets holding my 4-row lower radiator brackets to the core support, I did that so I could use machine screws to bolt the brackets back in. That way I could replace those with the smaller brackets and put my recored radiator back in if I so decided.