For all of those interested in knowing what happened, in my short experience I found the Curtek system satisfied what I wanted. I made brigther leds using Radio Shack´s 1100mcd 100 degree angle leds, just hooked them up to the curtek system module and presto! I have not had any radio interference, and the price for the module is accesible.
Now I am trying to find a way to install two LEDs in the belly of the bell 222 and look scale-like. If anyone has suggestions, it would be appreciated.
The site for curtek is
www.curtek.com