69 Dart Swinger Wheels /Tires

So, I bought 7" x 15" Cragar's with 5/4 bolt circle and 245/15 BF Goodrich tires for the rear. I had to back-order 6" x 15" Cragar's 5/4 bolt circle and 205/15 tires for the front. Just received an email saying Cragar is no longer making the 6" x 15" in a 5/4 bolt circle yet it appears they still make a 6" x 14" in that bolt circle. Would it be ok to run 14" on front and 15" on rear or would it look wierd. Also does anyone see a problem with the 245/15 tires on the rear rubbing. All suspension is stock.
I used to run 14x5.5 steel wheels on the front of my 69 Swinger, 15x8 on rear. In this photo the tires are 245 60r15. You MUST have correct backspacing of 4.5" with an 8" wheel. Tires were very close to wheel lip and occasionally rubbed.IMG_20140830_095028.jpg