69 Camaro Wheels help

[snappytravis]

Looking for a little advice on wheels, I have a 69 camaro with mini tubs and morrison rear clip. I have a new set of kdws, 275 35 18, and 335 30 18. I have a axle flange width of 55" with 14.5 inches from outer wheel lip to inner tub. I also am running 14 inch wilwood on front, also morrison clip. I have seen a few running vette style wheels with spacers? I am not to thrilled about the spacer setup although it must work ok. I like the zr1 style wheels. I would like advice on running 18s on the front and 19s on the rear? or do I keep the tires I have and run 18s all the way around, Like 18/9 front and 18/11 or 12 rear? I would rather not spend 3g on wheels but may be the only choice.