[oasis]

Well, two things to consider ... and cheap may not be an option.

It would be better to go with restudding than with adaptors as a general rule. However, you must consider the hub and the hubhole. When I had Karmann Ghia disk brakes studded in a 5x100 pattern for my Super, I did not take this into account. Much to my surprise, the front brakes had a 72.3mm hub while my BBS wheels had a 57.1 mm hubhole. (Those figures are off the top of my head but if I'm off by a smidge, the effect I'm describing is still the same.) I needed to machine the inside of my front wheels to make it work.

The biggest problem with adaptors is for safety sake they should be hubcentric -- that is, the wheel should have a hub to deal with, not just the bolts. Getting hubcentric adaptors are not cheap and will need to be specially made. You may find these adaptors will need to offer more spacing than what you truly need -- but getting them to be hubcentric is important (in my opinion).