Most of the money is based on time doing the benchwork (prep), and that of course depends on the quality of the part at the start. I do some, and have 3 other resources local to me, but they are pretty much booked so you would have to have that taken care of some other way. The prep work is not unlike what is done on stainless up to the point of buffing; however aluminum is thinner and more subject to damage to the point where the part is junked. Also I've had a few sets of rocker panel moldings that looked pretty nice, but after a few minutes of sanding right behind the front wheel it was apparent that the road rash was too severe. If it were stainless there would be enough meat to sand through, but that is not the case with the aluminum parts. I had a beautiful 70-71 Cyclone trunk edge molding from the junkyard but after stripping we found a bunch of holes in it. That hurt to recycle.
If the parts are prepped and ready to go, not that I'm looking for things to do, but it would work out best if I were the middle man for packing, tracking, and delivery. The anodizer is a commercial production operation here in Michigan and it is a challenge to get hobby work done. They won't talk to a hobbiest, but we have a way
The long rocker panel moldings would be about $225. Small items like the fastback quarter trim about $50.
Shipping is also a challenge, and not insignificant cost for large items. Hope this all makes sense.