Do you guys think I could fit this rim

15" x 8" with a 4.25" backspace
http://www.summitracing.com/int/parts/crr-61c581242/overview/

and 275/60 R 15 BF Goodrich Radial TA tires on my 69 Charger?
http://www.summitracing.com/int/parts/bfg-17476/overview/

fronts available are

15" x 7" w 4" BS
http://www.summitracing.com/int/parts/crr-61c571240/overview/

and was planning to run 245/60 15 radial TAs there
http://www.summitracing.com/int/parts/bfg-98854/overview/

opinions??? will they fit no prob???