Thanks... I just hope that if there is some other poor chap out there in the world in the same situation I'm in, and I'm sure there is, then he knows he's not alone. Sorting this G out (especially the body) can be overwhelming at times but thank God for Al Gore inventing the internet... that's all I can say.
Yes, the engine was great until I decided to run Amsoil in it... got sold I guess. Now it leaks around the oil pan seal underneath the fuel thing next to block (not sure what that is called on a diesel.) So, more towards the middle/front of the engine on the right hand side as you're looking at it. It's also started seeping a little from back of the head gasket. I've not been overly worried about it as I plan to do a swap next year... once the body and paint is right and behind me. Edit: engine still runs fine, just smokes more with the Delvac.
The cab is a four piece, five if you count the rear hatch. And for sale. Needs some minor rust removal and fresh paint. I have not been able to find any part numbers on it but what is interesting is it is painted in the same color as the inner fenders, frame, etc. That blueish/grey color... makes me thing it was a factory option at what time. I'm sure there is someone that knows for sure.