Thanks guys, I've got a crane part done but am still searching thru the old parts boxes for other greeblies to fit. May have to incorporate other small models that I've scratch-built as a diorama.
The engine is in the rear as usual - it may have been modified to slide out to the rear for maintenance as access is now not very good.
I got this kit back in the '80's, very soon dumped the turret as it obviously too squashed.