Added some couplers and 'close-enough' trucks for my mock-up (wont be printed, sourced elsewhere) and its practically done! Just some work to make sure it fits on the donor PCC streetcar frame/electronics. Most small parts to be printed separately (for easy production).
There was not a coupler on the back of it (not sure why as it one some occasions pulled a small flatcar) but will probably add one anyway as it looks pretty bare around the rear end.