That is an option worst case scenario. Personally, I don't think it should have to come to that though. If you get tires too small for your rims do you cut them wider and force the rims in? No, you get bigger tires. You expect to be able to buy the correct tires for your rims (I have no problem paying a few extra dollars for the correct sim). You should be able to get the correct parts needed for the product you bought. Regardless of proportion to cost, size, or how easy it is to modify a sim, we shouldn't have to. Just saying...