15 x 8.5 Wheels

[72Thunder]

Hey all, just bought a set of American Racing Vectors. They are a 15" x 8.5" rim with an offset of 6 and a backspacing of 5. I am planning on buying 2 295/50s for the back and 2 245/60 BFG radials for the front. Am I over doing it with my tire sizes here? I want a wider tire for the rear but I am unsure how they will look or sit in the fender.
Does anybody have this kind of setup going on? Is there any recommendations for tire sizes before I pull the trigger on buying the tires? Should I use spacers for the rear for a better look?

As my truck stands now, I have 275/60s on a 10-10.5" wide rim. No drop or anything. My fronts stick out about and inch and rears about 1/8".

Any opinions are welcome and appreciated.