Folks, I've been watching for a deal on an 8X10 enlarger,(something I can afford ). Don't see many, all are way out of my price range. I do know that Arista ma kes cold light heads for some 4X5 enlargers,(Beseler 45). I've heard of some fo lks crafting an enlarger from old cameras. Any thoughts or guidance as to the l ower cost items to watch for, or instructions to build one from an old 8X10 came ra?