I'm surprised no one has answered you yet, so I'll try with what I can. I have a 2017 R-27 with factory RT260 RIB. I don't know if Ranger Tugs still sells this Chinese model, but here goes:
Length?: 8'6" (as advertised, needed for towing on swim platform davits).
Beam?: 56" including rub rails (as measured by eyeing tape measure).
Weight Capacity: 3 persons or 495 lbs. 805 lbs. persons, motor, gear (per nameplate).
Dinghy Weight: Idunno, somewhere around 100lbs maybe (it's Hypalon with fiberglass hard bottom = heavy if you gotta carry it any distance).
Height above waterline?: Idunno, varies depending on loading, ~15" diameter tubes (as measured).
Draft: Shallow - use short shaft motors (per broken prop pins 😱 ).
Motor: 6 HP (per nameplate).
Max engine weight: 66 lbs. (per nameplate).
I used my calibrated eye and tape measure converted from SI units to English inches, so take each measurement as an approximate conversion. Hope this helps you with your comparisons.
Todd