Nah, I think you can make it work. It won't be just plug and play, but it'll still work. I got my HID's 3 yrs ago, when they didn't put custom bases on the bulbs. I put 2 reg phillips d2s bulbs in and mine have worked fine ever since. You just gotta figure out a way to secure the bulb in the slot. You'll prolly have to bend that metal lock pin to get that to lock back in. If it were me, I'd just use what you got and make it work, it'll prolly be much cheaper.
Hey Xenon, if you could gimme some instructions on how to properly do the conversion to an H7 application that would be great. The directions have to be in "lamen's" terms since I really don't know to much about this sort of thing.