Hey Mark my biggest problem is the only thing it's going to cost me for the 245's is mounting how can you pass that up ?
Ah, now I got it!! Go for it , then see if you can correct the speedo with a Smarty or something to compensate if you want.
Member Jeepr informed me that you can go to your local dealer and have them adjust the speedo according to tire size. It's a lot cheaper than buying a Smarty when money is tight.
Cheaper still, grab the tires and use your GPS for your speedometer...