Spent some quality time yesterday with JMynes looking over his cab.
In the photo he posted under his "...with heat" thread it looked good, but looked even better in person- seemed to be very solidly built, and was easily modified to fit the 2310.
Jim & I checked out backhoe operation with the rear window (snaps at top + velcro on sides & bottom) removed. Both of us, if we sat up straight & tall, would push our heads into the (padded!) ceiling, but didn't have to crouch much at all to avoid that. Jim didn't have the backhoe on at the time, but I think with the footrests in place in could easily be done. Now, time for more research! (Apologies to Jim- looks like I got you in the pic!)