Just happened to see the dent pic on the forums. You might try to pull it out yourself using a dent puller from Harbor Freight. I bought one for about $80 and it worked pretty decent. (the air operated slide hammer). You can improve the situation significantly. I have about 100+ lbs of air to use also. My dent on the roof was along a seam of rivets. With some online research and you-tube you can see how it's done.
Aluminum reacts differently than steel and its harder to concentrate your force in a small area with the surrounding metal tin-canning. But, worth trying. The alternative
to repairing those is $$$$. Just a thought. Good luck.
fstuneck@comcast.net (Fritz)
Also, creases are next to impossible. Also look up PDR (paintless dent repair).