Dropping the mast is easy. hook a halyard
to the tack fitting then crank it up tight. release the forestay then have soeone lower the halyard
so that the mast starts leaning back. Then have two (preferably tall) peoplewalk the mast back and lay it gently on the cabin
top. From there you'll need to walk the mast forward at the base till it overhangs the bow.
You can loosen the shrouds but there is no reason to take them off and a good reason to leave them on --they give the mast stability when coming down. Also make sure there is a solid connection at the mast base if not you will need to lash it and have someone there to watch it.
Stepping it may require an "A" frame. But it is the same process in reverse
I don't think that the mast is going to be the deal maker or breaker on this trip. It will be whether or not you can get a complete tow rig (truck and trailer).