I would look at a set of Police car/Ramcharger rims..(15" x 7", or 8", don't recall...) They look low profile, offer the width you eventually will need.The Cooper Cobra standard radials ,used to be fairly sticky. Figure what you want it to do,start on getting a safe & functional chassis. That's how I was taught, 3-400 honest horsepower on a worn out chassis,is not a good thing.....