The mast is deck-stepped with single swept-back spreaders, which is exactly the arrangement that lets one person raise it — the swept spreaders hold the spar in line while it goes up.
Setting up
Pin the mast foot first and let the spar lie aft along the boom gallows. Both lowers stay connected the whole time: they are what stops the mast falling sideways at the halfway point, which is the only moment that really matters.
Raising
Take the load through the A-frame and the trailer winch rather than your back. Slow and continuous beats strong and jerky, and lets you stop and look.
Tip: tape every split pin before the mast goes up, not after. Doing it at deck level takes a minute; doing it at the hounds takes a ladder.
Tuning afterwards
A fractional rig wants the forestay tension set with the backstay, not the shrouds. Get the mast in column first with the lowers, then add rake.