undecided on tire size for truck

[ProStreet83C10]

ok guys, so ive got the wheels picked out that im buying for my truck, and i know which brand of tire i will be running in the back, but i cant decide what size tire i should go with so my truck LOOKS right. i currently have 235/60R15s (26" dia) up front and 275/60R15s(28" dia) out back, when i added smaller tires up front it lowered the front of the truck down (not a bad thing in itself) a lil bit further than i wanted it which in turn made the rear end appear higher (going for a more level look - not so raked)

Anyway, the wheels im going to get are the new Weld RT-S S71 sport forged racing wheels in a 15x6 front and 15x10 rear width. I will be running current tires up front and im trying to decide what size to go with out back. i want the tire as wide as i can get but id like a shorter tire to hopefully level the truck back out a bit more. Theres not a whole ton of sizes to really choose from, and most of the tires in the widths i want are 28-30" tall, where id like a shorter tire to match fronts better height wise, but still have the width out back of a mini tubbed look street/strip look.

If anyone has an idea of what i can run thatd be awesome, heres trucks current stance with brand new 235/60R15s (26" dia) tire up front and worn down 275/60R15s (28" dia) tire out back.

Pics arent grear, but they give you an idea anyway of what im dealing with, i need new better pics of it this year