it's not just you. This is not really the most eficient way to do things.
Last year the car had to drive for a trackday, and the car was rushed ready. And back then the bigger wheels were in distand mind for this car, but didn't realise fitting them would be a big issue. However i wont be welding and repainting now. A collegue advised me to bond it together, and that should be pretty strong aswell. I'll be using Hercuseal Sealer 302.