Pete,
Good move!
I started collecting P38's because the were less expensive than Lugers, but now the gap is closing on some P38 variations.
Here is a link to my collection on the web.
http://www.p38guns.com
You will find pictures of most of the variations and info on grips.
For a shooter P38 I would recommend calling FGS for a "dipped" gun, the AC 44 you have is too nice to put a thousand rounds through.
Mark