I can totally recommend Eric Lang from Projection Systems. He sells on eBay under the name Quaturbo. My friend and I have bought two 1272's with line doublers, screens, etc. Great person to deal with, very knowledgable, and totally trustworthy. As for the quality of the picture, line doubled...
If you can control the ambient light and have a large enough room, I would suggest a used sony 1272 CRT unit off eBay or I can recommend a dealer. They are tough as nails and work great for a 120" or larger screen.
I went to all mono-blocks and have an RB-991 and an RB-993 that I need to sell. Both in Like New condition with boxes and everything. I would think that they would bring over $500 and $650 on e-Bay, but I would take $1100 plus shipping if someone wanted the pair.
You can order this CD and see what the low frequencies sound like. http://www.stryke.com/testcd1.htm Or, actually what they don't sound like would be more accurate. Most of what you hear will be the room shaking below the 17.5 hz track, not the material. I have my 20-39CS+ tuned to 16 hz...