what do you think?

hello all, long time no see. anyhow buyin rims n tires. first off is front, have 14x7 so going to 15x7,same backspace

rims http://www.summitracing.com/parts/amw-22980/overview/
tires http://www.summitracing.com/parts/fal-18108/overview/

not sure on back yet. any back tire size recommendations? thinking 15 rim not sure on width or tire size