I'd say just drill a hole in it to give it more room. Just wondering how are you mounting the light indicator on your sidewinder? Do you have a ring site on it or just attaching it to the lens somehow?
I called skytools and was told that to date they have not found a way to install it in a SidewinerO2 , So i came up with a way on my own , First i melted the plastic off of the Lanc plug till i had bare wires bent the wires down 90 Degrees and re soldered them , I then used 5 min . epoxy to hold it all together. I drilled a hole through the sidewinder logo and installed the controller by using epoxy and glueing it from the inside, It stick out about 1/8" and is very easy to get at. I installed the light in the lower right hand side of the visor between the shell and liner , For a site i just use a binder ring glued to the visor . I am very happy with the results . I also managed to install a NPFS 21 battery without binding up the door, and they said that they didn't think that could be done .