I talked to Bruce at Van's this morning and asked him about running out of pop rivets on the attach brackets. He said the rivets I used were fine and as long as I sealed them well with tank sealant, I should be OK. He said the rivets I used are probably stronger than the correct ones. I feel better knowing this! I stopped at Home Depot on the way home to get some more M.E.K and Acetone. I also picked up some clear vinyl tubing and some fittings to do the pressure test on the tanks. I'll wait a week or so, then do the balloon test. I'm also going to hang out with Wendy tonight and NOT work on the plane.......