Bf 109E/F rudder

[jhbrs3]

Hi from Brazil!
Firstly, my sincere condolences to Eric family and friends. Although not knowing him personally i have all books and references from his work who helped me many times from doubts about Luftwaffe aircraft.
I am sure that from his new spiritual level he will lightning our ways to learn more about aircraft history. Until now WELL DONE ERIC!!!
So, I have some doubts about the type of rivets used in rudder structure of E and F models. I have the parts lists of both but (to my surprise) didn't explain the type and measures of rivets in vertical rudder structure.
As I am assembling a 1/32 Matchbox kit (in fact three of them!) I would like to represent the correct shape of tissue covered part.
Another issue is the correct measures and design of the F rudder that differs from the earlier F model. Anyone could have a draw of it?