4x100 to 4x130 wheel adapters

Hi just brought some wheels, their a 4 stud beetle pattern and im tryin to get hold of some adapters. The only one's i've seen are from machine 7 which are ?130 for 2, and are a little steap for a student. Anyone knowin of any other companies doing them or anyone wants to sell any that would be great if you could help.

Thanks