If you can do without the gel frame, these are an option:
Par56 LED Black - BulbAmerica.com
Par64 LED Black - BulbAmerica.com
I think you want some diffusion in there, IMHO.
Edit:
Pad, just remember that for me, these are good, as I'm still talking about the same low ambient light settings... you have a full stage / concert to contend with, not sure if the output would be on par with what you need, perhaps some Opti RGBs are better suited?