Hello,
I would get a hold of Marc (Gottaluvlasers on the board) and also (
http://www.ctlasers.com). He can build you a varianced projector or sell you the parts you need. I noticed you were selling the Melles on another post, are you sure don't want to keep that and just get a big blue and red laser to go with it (although I am pretty sure the modulation on your green is TTL rather than analog

). I would also take a look at CHROMA laser color blender by a PL member Tocket
http://www.photonlexicon.com/forums/...ead.php?t=7221 so you can see what powers you want, and the resulting color balance.
-Adam