The price is based on the last place you have a Photopass Photo taken (they are date stamped in the system so the computer knows exactly when and where each photo happens)....not where you buy the Gallery CD. So, as PP said, have your friend get at least one photo taken by a PHotopass Photographer in
Disneyland AFTER your WDW trip. She can get as many as she wants, but you only NEED one. Enter both your WDW and your DL cards into your photopass account, edit all the pictures you want, and then when you go to check out it should charge you the $59.95....enter the code from the Gallery CD box, click submit and it will show your balance is zero. Without the Disneyland photos it will simply take $59.95 off your total, but you'd have to pay the difference for the only WDW pics.
So...you'll save at least $40 (off the WDW pre sale price, and about $90 off WDW's regular price), PLUS you'll get the Gallery CD.
Personally, I think that kind of savings would be worth sending your friend with a Disney gift card for a couple of Mickey Ice Creams!
Oh...and of course, when you receive your CD you can simply email her copies of her photos (or burn them to a CD for her).