... Does your friend's also have dual LED's mounted backwards in the shroud? I'd like to see some pics of those as well if you have them. What type of paint did you use for painting the housing and shroud black?
Unfortunately, I didn't take pictures of the back rings, sorry. Basically, I use 4 small plastic tubes (cut up from dead Bic pens, gotta recycle!) to create a set of stand-offs, and glued those to flat part of the back of the projector. Then 4 thin but sturdy plastic strips (cut up from one of my wife's leftover Tupperware containers, she won't miss it!) to tie together the 100mm and 80mm rings. Then I glued the combined rings to the stand-offs. That's it. If I ever do it again, I'd probably stage the 2 rings rather than tie them together. I thing I'd get a better reflective effect if the 100mm was more recessed. With the 2 rings tied together, the 80mm pushes the assembly forward, since it cannot clear the bowl of the projector.
The only difference between my setup and his setup is that my Ex is black and his is blue. Other than that, he's getting an identical configuration.
As far as paint, I dechromed the shrouds first, using oven cleaner (bleach works too, for more complex or larger pieces). It took a couple of cleaner/rinse cycles, but eventually you end up with this:
Then a couple of thin layers of Rust-Oleum Self Etching Primer, followed by Rust-Oleum High Heat enamel (thin dusting first, then 3 thicker layers). From there, into the oven for 15 minutes or so, on the lowest setting (200F in my case). Last step was Rust-Oleum Clear Enamel, only a couple of layers, to get a more reflective effect. And again in the oven for 30 minutes (oven off, pre-heated to the lowest setting). From what I've gathered, if you're going to do a clear coat, you have to make sure it is the same type as the actual paint, Enamel+Enamel, or Acrylic+Acrylic. Enamel+Acrylic makes for a bad combination.