wheels and tires

[67velle]

Any body have any thoughts on this combination? 67 chevelle 10 bolt with drum for now aftermarket front disc with stock spindle height eibach springs umi trailing arms urethane bushings and body mounts . Wheels and tires next on the list I like the bonspeed clutch 20s and 18s I am willing to cut or roll the rear wheel lip to get the widest wheel and tire .I am not against other options or any tire brands. Pics,sizes , brands, dealers?????What is the going price ??? How long should I expect to wait??? Backspace for the deepest dish??? THANKS FOR ANY HELP IN ADVANCE!!!!