I've got some hot pics of my VDC in my profile, and can send you more if you want. The only place I know of where these doors are played out is in socal. But that is inevitable. The more popular something becomes, the cheaper and more accesible it will become.
As for suicide doors, if it could be done, it would cost you a pretty couple of pennies. Major custom modification would be involved; you'd have to move the latch to the front, figure out how to bolt and hinge all that weight to the back of the door frame, etc.
If you could get it done, that would be cool. Gull wing doors seem slightly more impossible, but again, would be cool if it could be done. It might not look all that cool, but that is opinion, and getting it done would be an accomplishment.
Anyways, good luck and have fun modding!