I hear that.. but in regards to changing the main shaft.. it's not that hard. If you pop off the Flybar links at the swashplate, and then remove the Head Assy. shaft mounting screw, the head'll pop right off. Then you have a screw in a retaining collar just below frame under the swashplate. Lastly, you need to remove the screw and nut from the main rotor gear, you'll need to brace the nut with pliers. You may find that it takes significant force to remove the main gear from the shaft. I used a screwdriver braced up against the frame while pulling upwards to slowly pry it off.

I know this because just the other day I chewed up the main rotor gear during a crash. Oh well, live and learn.

You also noted something about the stabilizer hub, I wanted to tell you I have found a very industrious repair option for that control piece. It seems the most fragile section of the hub are the two extensions that hold the flybar, right? Well, when mine recently broke, I drilled out the flybar holes to about 1/8" or so, and used two 1/2" long pieces of small heatshrink tubing and shrank them to the flybar. I then fed the flybar into the stabilizer hub and CA-glued the shrinktubing to the stabilizer on either side. I let it set, and then removed the flybar and put another layer of shrink tubing on the now 1/4" posts sticking out of the hub. Reinserted the flybar, and shrank again. I then trimmed the tubing flush to the inside of the hub on both sides, lightly filing down any excess after, and then slipped on the flybar weights on the now hardened posts and trimmed the exposed tubing flush to the weight. I now have a very rigid, completely operational stabilizer hub without waiting for parts, and repaired my other busted stabilizer that I knew I was saving for some reason or another.

First it was necessity, then lazyness, now impatience-with-slow-shipping that leads to invention.