Mast stepping old DS1

Hi everyone,
One more question about my "new" 1965 DS1. She has the two part mast. The bottom part rests permanently on the mast step on the keel of the boat (which has a clever threaded turning device to literally raise the mast vertically and tighten the shrouds). The top part sort of slides into a sleeve at the end of the bottom part and is then secured via several bolts with wing nuts that run through the sleeve. The question is, does anyone have tips for raising the mast into this sleeve?
Thanks,
Kevin
One more question about my "new" 1965 DS1. She has the two part mast. The bottom part rests permanently on the mast step on the keel of the boat (which has a clever threaded turning device to literally raise the mast vertically and tighten the shrouds). The top part sort of slides into a sleeve at the end of the bottom part and is then secured via several bolts with wing nuts that run through the sleeve. The question is, does anyone have tips for raising the mast into this sleeve?
Thanks,
Kevin