I went ahead and used the dremmel with the coarsest sanding tool. It burnt through 3 of them, but did the job fast and easy. I also ran into a problem with mounting the Hydraulics and Under Shoulder Details. These pieces were drilled for a much smaller screw than the Legs or Horseshoes were made for. I thought about drilling these pieces out, but instead I just grabbed some #6 washers and lock washers which worked out great. They are all held in place very well, and it even clears the shims on the Hydraulics with just a lock washer.
Finally, I decided to go ahead and mount the Shoulder Hubs. These are held in place by magnets: a set glued to the inside of the legs, and a pair to the back of the Hubs themselves. I used some Locktight Epoxy, which worked very well, almost too well. It was the quickset type, and it does in fact set quick. Luckily I didn't have an issue with needing to reset any of the magnets, but the epoxy itself set up inside the plastic nozzle within a minute rendering it unusable. Fortunately two nozzles came with the pack, and it took both to do the job.
One neat little trick I thought of was to use some paint to mark the placement of the magnets in the legs. I had one set glued to a hub and doubled up the magnets, then put a good amount of paint on the top magnet, and then placed it in the legs. When its lifted out you have a nice swab of paint to mark where to glue the magnets to the inside.
I did, however, forget to check the polarity of the magnets before mounting them to the first Hub. It turned out to be a happy mistake though. Because they are opposite I was able to make it so the Hubs will only go in one way. I even marked one magnet red and one blue on the back of the hubs and inside the legs. That way its real easy to tell just by looking. It turned out good as you can see below.
Now just awaiting Booster Covers and Ankle Details to finish out the legs before painting. Both of wich are ordered!