Well, a little violence may come in handy from time to time: fortunately I use glue in small quantities, so the small buggers came off without too much damage to the interior - only a minor hole had to be putty'ed up. Some parts of the suspension, however, did not take too well to the firm grip needed, when the misplaced parts were pried off. But these can be glued on again.
So much for making stupid mistakes - it'll cost ya...
I can tell from reference photos (and thanks again, Torben...

) that the Nashorn had a forward mounted antenna socket on the inside of the right-hand side armour plate as well as MG mounts for close defence on both side armour plates. Will do those and look at wiring before returning to the paint job.
But again, thanks for pointing out, Johannes... particularly at this early stage...
many regards
J