I am thinking of using my 01 GG 250 XC for some DS. It has smooth enough power and low enough vibration I think. I'll be doing 80% off road, just enough pavement to find a gas station and connect trails. Question: Is there a larger gas tank from any other bike that will fit the GG? How bout a perimeter framed KX or KDX tank? I'd rather not buy an expensive new one from IMS or Clarke, although I will if necessary. Thanks, Jeff.