right mad2fly,
the last one I had been associated with was a late model B-200, Proline 21 bird, with the full Platinum kit...
I can look it up tomorrow, don't remember exactly, could be it had a BOW of some 8.400 lbs.., I'll check it..could be wrong on that..start to forget things at times...
but then again, you don't need full tanks for quite some range
and no, you do not want to take it out of wet grass....
in fact if it were my personal bird I'd never take it into grass, just really on a perfect dry day with a hard smooth grass runway maybe..I mean you want to be nice to your own plane, right? ( that new Proline 21 Cockpit, while being excellent for all practical purposes, does not seem to take rough runways too kindly...you'd think with all that new AHRS stuff, it would be immune to rattle & roll, but the contrary is the case..for the bush I'd prefer a "steam driven cockpit", you may have to overhaul those gyros more often, but they do take a beatin'..)
but still, the Raisbeck kit on the B-200 delivers and an already good airplane becomes a near perfect one with the kit..
again for payload / range I'd say it will beat a B-350 out of short fields