Good job Rob! When you tire of welding you should become a detective.
Sooner check out the link below if you have not already.
http://forums.pelicanparts.com/911-930-turbo-super-charging-forum/447083-slantnose-slant-nose-slope-m505-factory-930s-documents-registry-ultimate-flachbau.html
There are a few guys around who know these cars very well and will chime in I'm sure.
Conversion or whatever, you have high quality parts there and the motor package is awesome.