Flippin heck! it must be something in the water cos the transporter is now ready for primer! My cunning plan is to almost complete the painting inside & out, including weathering before fixing the cab and chassis together. That should save a lot of faffing about especially if I can get the glazing in place. Never tried using this method but it looks like it could be a winner.
So here's the model in its sub assemblies. The detail is smashing particularly the door cards and front grill area.