LED Strobes/ Nav Lights

[DanB]

I would like to hear from others what they have found for Nav Lights and strobes. I developed a beacon for the top of my vertical stab which should work well... http://www.azshowersolutions.com/Vertical_Stab7.html
Before I dive into my McGiver box of tricks, it would be great if there was something out there already designed. I know there are some out there, however, I'm not up for paying $600 for the pair. I made my tail beacon to avoid Whellen's inflated prices (made it for less than $40) and I'll do it again unless I find an alternative. Someone on the RV site used to sell LED kits, but I'm not sure that they would work out on the wingtips of the Kitfox. Any ideas would be appreciated.
Thanks,