thanks 
I got lucky, it was offered here and I was fortunate to get to it first… Novatacs go pretty quickly on that forum, and this one already has my favorite LED mod.
I have found other Novatacs on Ebay, and there are also some new ones available, posted here and there are some on Amazon
Dont be fooled by this guy on Amazon selling porn videos, he has been using this listing, he is not actually selling a Novatac, and has been selling porn with that listing since at least 2011. The tipoff is to read the reviews, where customers complain they got a video instead of light.
Warning, you have to be lucky with Novatacs, many have issues with the signal spring grounding out the switch. This can be fixed with a new spring… read all about it in my other Novatac threads…
Many Novatacs also have visible flicker… which is unfortunate, because they have other great features, including the HDS Clicky UI.