I'm mast up all season so I use a 6-foot step ladder and a "come-along". The ladder gives me something to rest the mast on while I'm pinning the hinge and it really helps get the lifting process started (I broke a hinge a while back muscling it up from the beam so I'm pretty paranoid about keeping the mast in line and find the ladder really helps). I hook the come-along to the front of my trailer, run it under the bridle wires and then clip a line on the other end to wrap around the raised mast (in the sail entry gap). I find the come-along simplifies the final step of getting the forestay pinned.
'82 Hobie 18 SE with '85 Nationals Prism (White) sails
'73 Laser HID# 3463