Hello everyone we are total newbies here. new to the forum and hope to be new to the rv lifestyle soon. on 12/26 we looked at a 1997 u 320 40ft. with Cummins m11 and an Allison transmission, 161,000 miles. super clean inside and only couple small blemishes outside. I know that the M11 with an Allison is a good combo but thought I would check the combined...