Charlie,
You can add a step to your mast stepping routine thats add a little more safety and peace of mind.

Tie a short piece of line inside each side of the front beam (it lives there forever) and when you raise or lower your mast, you can tie off the trap lines with this line. This way the mast only will go in one direction, you dont have to worry about wind catching it or having it go sideways at all.

I use this method for the HT mast and the Acat mast. The HT mast is much heavier than the Acat mast and longer, it helps with both.

Jake,
I like the stand on the wheels, thats a great idea.