Help on undercoating and sealing scheme - SWB chassis 1968

[AlexJ]

Hello fellow members...

This topic was first published on general technical 911 but some members suggested I should post it here.

I am finishing a SWB chassis before painting and I need some guidance.
I have been searching around but could not find any thread specifically on SWB...

Does anyone know any thread where I can find the factory looking undercoating scheme and sealing scheme on a SWB chassis?

The products to use I have already been doing some research around... it is more like, which areas should I apply undercoating, etc. where to apply sound deadening, etc.
I am not sure I have seen a pretty good document some where with some clear pictures... if anyone knows it, please post the link.

Thanks in advance for any help.