1970 914-6 Bottom Paint Question? Options

[racerbvd]

I got a big question on our 914-6, on the bottom, mine has been painted a different color (from the factory) and undercoated:confused:
My paint guy says that he finds no traces of Blue on the bottom and that the color & under coating appear to have been applied from the factory..
, (IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-226-1320700084.1.jpg)
(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-226-1320700084.2.jpg)

(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-226-1320700085.3.jpg)
This is a Concours Restoration, so it has to be correct, so on one hand I'm thinking just Paint the bottom the matching Blue, but on the other hand, Porsche was also known to sometimes spray the bottoms with what ever was left in the Spray gun and I know of one collector who has a few 914-6s, like mine, both 70s and both OEM, yet one of his 1970s Six's has no coating; another '70 does:confused:
I need to figure this out ASAP as the car is ready for Paint..
(IMG:http://www.914world.com/bbs2/uploads_offsite/forums.pelicanparts.com-226-1320700085.4.jpg)

[Sarastro]

I am the second owner of a 1970 914-6 originally purchased in Germany (no treatment by the importer). This car has its original paint and is completely undercoated in black. I cannot say what color is under the black undercoat.

It is my understanding that the 6´s were manufactured in a completely different plant (a 911 plant) than were the 4´s which were manufactured in a VW plant. The 4´s were painted entirely in one color, including the wheel wells, trunks and engine compartments. It is very possible, though I have no confirmation, that the 6´s were not painted the same as the 4´s.

If I were to attempt an original restoration of a 6, I should absolutely paint the underbody, wheel wells, and the area around the gas tank black to include a rather thick undercoating.