Need a 24x10bs help

[The Big Green]

I hate wheel bs math! I want a 24x10 back and the two wheel bs are 5.91 and 7.1. I have exactly 12in before I hit the bed when laying and the lower bars, that's touching measurements. That's 4 front amd 8 back measuring from the wheel mounting surface. Now Im thinking the 7.1 but that's still close and it's an all bs wheel and may look funny but if it fits I don't care. My tire will be 275/30/24 if that helps.