Sorry for taking so long to answer but things have been a little hectic around here. As best that my son and I can remember of that sketch (it's been over ten years ago) is that the front wheels are 16x4.5 with 550R 16 tires and the rears were 16x7 or 7.5 with 750R 16 tires.
Thank you for visiting the T-Bucket Forums! This site was created in 2006, to provide enthusiasts with a place to discuss T-Buckets. Over the years, there have been many imitators, but this is the T-Bucket resource you have been looking to find. We encourage you to register a FREE account and join in on the discussions.