will these fit?
 

So I'm thinking of getting a set of Fiske Mag wheels for my ghia. The smallest they will make then is 17x7 with an offset of +53. I know people are running ghias with 17x7 porsche cup wheels that I think are +55 offset. Are those 2 mm going to make a big differance? What are some things I should look into before ordering the wheels. I dont want them to come here after 4 weeks and find out I can't use them, since they are built to order.