What machine is that? It doesn't have the emblem on the headlight cover and the square emptor of a dual sanitronic 50, and the handle is all wrong for an 80 among other things.
Yes you're correct, it's a d80 motor unit, with d50 handle and belt lifter. It has a classic 1cr bag system and heritage 2 wheels and front bumper. It also has an aftermarket brown handle grip... it's totally custom.