Congrats! Let's see a picture of your upgraded ride!
I did the same install on my Mini, but I didn't run into any trouble with the rear struts because I didn't install them. My Mini has a rear rack fitted from a Dahon Curve, and the rack is using the fender braze-ons. I used the fender hanger attachment, attached it to the bottom of the rack and bent it around the fender. Holds together just fine.