I love kubotas, very quite and smooth running, no smoke etc, I bet it's a z482 or zb600 or similar, I had one not long ago with a 202 on it, great machine, that was a trailer mount with a hotbox too.
Matt, not going to van mount it as most the work I do is on cold, if things change in the future then I may go down that route, for now it's great on the trailer just to hitch up and go to gum removal jobs or 2 man jobs, or I could drop a guy of at a job with it and I go to another etc, it's got an 800 litre tank so good to use for an hour or so. I couldn't have picked a better machine for my needs really.
I would defo swap that unloader round on your machine mate, that way you will get steam out of it etc