> The Ford F350 and F450 units all had such a massive doghouse that there was no foot room on either side, which seemed like it would be very uncomfortable driving.
That was one of the features I looked at in the many MHs I checked out this summer. I would say 75% has such massive doghouses I ruled them out immediately. The one I finally bought does have a doghouse but it is low enough that I can lift my feet up and swivel the seat to get past it. Getting to a standing position is still a challenge but with one hand pushing on the dash and the other pushing on my cane, I can usually rock once and then make it up. Not ideal but if it lets me keep on RVing I will happily make the effort!