Almost there. I went back to my father’s lathe and increased the inside diameters of the remaining three wheels so they actually fit onto the hubs:
The one at bottom right has its outer hub glued in because I managed to break it when trying to get the wheel into the lathe so it wouldn’t wobble. Turns out the material of the actual wheel part is fairly thin, and pressing on the but from the outer side of the wheel stands a good chance of shearing it off. Luckily resin tends to break quite neatly so you can glue it back perfectly in place.
Then I completed the turret:
The kit provides exactly six parts for the turret: the shell, the lower bit with turret ring, two hatches, the internal part of the periscope, and the machine gun. I left off that last one and put a few bits of plastic strip into the opening for it, because I noticed in photos that BATUS safety vehicles had a blanking plate there. I also filled in the two round ports in the rear sides, added lifting eyes to the lower front from 0.6 mm copper wire and tie-downs by glueing short lengths of 0.4 mm wire to the sides after marking out their locations (which I measured from a photograph). Finally, I added the hatch supports — the strange mushroom things at the front corners — from a 4.5 mm length of 0.5 mm plastic rod with a 1.25 mm punched-out disc of plastic card on top.
All that remains to do is add the upper hatch, but I left it off in the photo so the supports at the front are visible
One thing I forgot to mention earlier is that the turret opening in the hull is too small for the ring on the turret itself, by about 1.5 mm or so. I took a circle template, found the circle that the turret ring would just fit through, and used that to scribe a ring on the hull top around the existing opening, then cut and scraped it out with a knife until the turret fit.
And here’s the complete model, minus the fire extinguishers I still haven’t found (oh, and the hatch is still loose but
just stayed in place for the photos):