So, now one of the control boxes not only has the D-Subs in place (not fixed as I need to remove them to solder on the wires) I've tried to fix in the terminal blocks. THe poly-cement was compatible with the blocks but not the ABS box! Superglue next. Just waiting 24 hours before giving them a twist to check the bond strength!
Another trip home has yielded most of the remains of my trainset. A couple of buildings (Signal hut and a pair of shops) but more importantly the remaining rolling stock - I now have goods wagons, more Pullman carriages and the Royal Mail coaches. Photos to follow soon.