Will have to backpeddle a little as the tire I thought I found was mislabeled. I want a 32" tire like the Dunlop RVXT on this Tire Rack page. Problem is it's actually E rated, not C rated as indicated. There are 32" tires that are C rated, such as the Yokohama Geolander in a 265x75x16, but they are wider than I want. The 235x85x16 all seem to be E rated.
If you are just looking for a tire "taller and a little wider than the originals" on the M101, the 235 size seems to be the only one that will fit the original wheels which are very narrow. Changing the hubs to fit normal 16" wheel will give more choices because of wider wheel selections (there are no other wheels that fit the M101 hub except the originals). If you change the hubs and go to a 15" wheel, there would be more choices available in the C range, I believe.
Sorry for misleading you in previous post.
BX