Original Tractor Cab Co does NOT have a cab for the GC2310TLB...I looked at several manufacturers like SIMS and Fremar. Northern Tool has one for $400. See link below. However, I found a very reasonably priced cab from Sears for only $200. While there was no way to use all the supplied brackets, I jerry-rigged a couple 2x4 to the ROPS and secured the frame to the 2x4's using pipe clips and it works great. I will post a pic soon in place of this one. I found this to be a good solution and it saved me about $1000 from having a custom cab made. It has plenty of room in it and other than having to stick your hand outside to move the joystck for the plow/bucket control (doesn't fit well if you try to stretch it over it.) The tubing used for the frame is pretty lightweight, so there is a metal support rod for the front that secures into the tube of the front of the frame and rests on the tractor hood. I wouldn't recommend using it without it, if snow builds up on it, I could see the frame bending. NOTE this is only a 3 sided enclosure, I'm also bought some fabric and covered the top 2 feet of the back so that snow doesn't blow in from the backside.
FYI...to make the seat easier to move from front the rear (for backhoe) make sure the seat is EXTENDED FORWARD. As you turn the seat around TIP THE SEAT UP so that you will be able to see the hole where the pin comes through to lock the seat down.
I got a chance to use it to push snow with the 5' snow/dozer blade and this machine ROCKS!!! I might not ever get into my truck again!

http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_612266_612266