John - Needless to say it looks great, as to the side curtain weather seals my HUP (June 1945) side curtains has canvas flaps which sort of seal out the weather I have pictures posted on my web site (see
http://www.canadianmilitarypattern.com/Posting.html ) though the pictures show the side curtains on my C60S (1942) they actually are the curtains from my HUP. The only rubber weather seals are the ones around the windscreens which are the T type molded rubber which is available in rolls.
Will take more detail pictures if that will help.
Looking at your HUP and mine I realize that mine has been on the road with me for 30 years and needs to be restored again. But that is the fun of these things.
Cheers