Hi Stan,
If you go to the "Construction" section of our website you will be able to read some thoughts on safe raisings and see photo sequence examples of several types of raisings ( crane, pike pole, etc.)
One of the featured frames - Jobe lane barn was raised in a day by a large volunteer team but all the frames were pre assembled and drilled the previous day by a small 4 man team ready for the main event.
Good luck with your event and keep it safe.
Regards
ken Hume
http://www.kfhume.freeserve.co.uk