thoughts om KMC 20 inch backseat wheels

[hummer05]

looking for opinions about the quality and look of the kmc 20 inch backseat wheels on the h2

this set comes with 305 50 20 nitto terra grapplers, was wondering if visually there is a big difference in size between the 305 50 20 and the 325 60 20
i like larger tires in general (have not seen the two side by side) deal but may be too good to pass up, could get set with 6,000 miles on them for $1,300
thanks