Looking for 1943 GPW parts
 

I am staring the restoration of a rough 1943 GPW and am missing a few key things that I will need to track down.
I am in the Calgary area, but would consider shipping; I'm trying to avoid repo stuff as much as possible because of price, and originality.

Key things I am looking for;
1) windshield and frame
2)seats
3)gas tank
4) rear tub panel; someone cut mine out for a tailgate years ago.
5) GPW engine; mine has a post war Willys engine.

Any help in locating one or all of these would be greatly appreciated!