Will a celette find out if this is ok

[SIMI BOB]

I knew there was some patching up on my '69S because there was some aftermarket undercoat in this area, but wasn't expecting this. When I put my old Sears angle measuring tool across the two rear A arm mounting holes on the left front side, I get about 11 1/2 degrees, and on this patched area, I get almost 15 degrees across the rear holes. On this patched area, the hole that is to the outside of the car seems that it was hammered into the body (see second picture), which added to that 3.5 degree mismatch. Please note that from inside the trunk, there is no visible change from what the factory did except right at the bottom of the triangle, where it is pounded down a bit. Pretty sure that the old mounting holes were cut off and this new piece lap welded over the factory metal.
Does anyone know what angle these two holes should be relative to level, and will a Celette find out if this piece is in the proper place?
Found this last pic in my Workshop Manual, and I do see 12 degrees for those holes. Am I interpreting this correctly. The front left is very close to 12 degrees
Thanks for your help, Bob B

[Cruisingnkali]

You should ask Bill Kelley (techweenie) - located in Chatsworth. He is a master of Celette and anything related to body/metal.

[bob joyce]

the good news is that the upper gas tank support appears to be original.
the bad news is that no body man would of done "bird turd" welding like this
the elevation difference is 18.7mm.
In the Porsche work shop manual "check inner fender front section 1965-1968"
From datum zero , the front hole is elevation -100mm the outside hole is higher -96.1, the inside hole is -114.8mm lowest.
NOTE: They measure DOWN from the datum line.
for all of the drawings go to Restoration Design then resources then Factory Dimension Diagrams.
find front inner fender 1965-1968
It is the same as your1969 car

[SIMI BOB]

So is there a consensus here that I should remove this piece, cut the hole to fit the piece and butt weld it back in? That is after i straighten it out to get it down to 12 degrees slant and get the dimension from the forward rack mount to 493.3 MM and 656 MM to the left front mount? I am assuming that this piece is a Porsche replacement part, because this was all done before 1974.
Any input appreciated. Bill is sending his body guy to my house next week (he just happens to live in Simi Valley) to give me some help.
Bob B

[Scott72]

IMHO I would get it on a bench and have it redone correctly. This way you can also get the rest of the car checked to be sure you in spec. You have it apart so you are a 1/3 of the way there anyway. I know if it was me it would bother me to no end if I left alone.

Scott

[bob joyce]

it is interesting that the area inside the trunk looks so nice. one would think that the repair that was attempted was due to rust?
the method used, even if but welded in at proper elevations would only be cosmetic.
the upper piece has to be removed to give access to welding in a few support pieces associated with this piece.
looks like you have the right eyes coming to look at it,,,

i