a guy by the name mafioso on lvc has aluminum machined adapter rings, the gen 2 requires a different set. I have the second set ever produced through him (for a gen 2) and will be installing them later today or by wednesday of this week.
He will sell just the rings not to mention he is a very nice guy to speak with on the telehpone and he has a top notch kit on which he offers lifetime warranty.
The same guy is also working with ford right now to get on the greenlist of aftermarket parts vendors, when/if this happens he will be producing 10,000 rings (5,000 sets) which will be available through the dealer.
Yes you can make your own stuff and piece something together cheaper but i like my car, i take care of it, and i want only the best for it. Right now, this is the best for it. I could make some adapter rings out of plexiglass/plastic or something, but then they could warp or break since its plastic basically. If i went to a machine shop it would cost hundreds of dollars and who knows how much time of r & d to get it just right. Fractions of an inch off in the base, even a 1/32 multiplyed by hundreds of feet make a big difference on where that beam of light goes. So what he's asking for the adapters isnt much at all considering he has already been through all this (as jamie pointed out wouldnt be worth it otherwise) and the best part of it all is you can take off your good stuff and hock it on ebay for about the cost of the kit and now your bulbs are readily available 9006 hid's.
Its a very nice kit and he's spent months working on the correct focal point for both gen 1's and gen 2's.
Pictures will follow.