This camera from Lomography is supplied as a kit. I the kit the mirror sub assembly is pre-assembled, otherwise it is all to do.
Quite a fiddly job, but with care anyone should be capable of following the instructions.
Basically one shutter speed and a mirror that needs to be reset manually. Even so it is still a genuine single lens reflex.
Close up lens are also available. Early models like this one did not have a flash contact. Current models have this added.
Sample pictures below. click on image to bring up larger version.
Mill beside Leeds Liverpool Canal
Film is Agfa 200
Leeds Liverpool Canal
One of the canal boats rented out by Sisden Boats.
Taken with the Konstruktor close up lens. Mine is an early model with no flash so this was on B.
Rollie 35 T
Another with the close up lens.
Church and church yard