has you down for 245/40R20 to keep the stock tire height.
I personally recommend the BFG G/Force T/A KDW, (I have the KDWS, in a 235 50R1
but it'* way outside the price range you wanted.
Keep in mind that even though this is a 245, you may still rub inside the well. Also, your ride is gonna be very rough. You're taking away a lot of shock absorption with such a skinny sidewall.
BTW, you got pics of the rims?