God you are lucky! I would love to do a troop with Harrison Ford. I need his, Kenny Baker's, and Anthony Daniel's autographs and then I have the orginal cast covered.
You might want to try here: http://www.imperialofficer.com/forum/
It's the 501st offical detachment for Imp officers. They would be able to help you out the best.
I think E6000 would be fine for the job, just don't use too much. I used that on my fiancee's slave leia and it worked fine. She wore it for about 10 hours a Comic Con last year without any problems.