Hey Doug,
Why didn't you get Brad and his cronies at Hi Tempo to do that for you while you had the chance?
I actually saw you pulling that thing out of Hi Tempo, as I was parking over there, and was going to try to catch you to say hi, but you were too quick, and I didn't want to make a scene!
Catsail.com has a good article explaining how to build a simple tool with a two by four, and a couple of big lag bolts, that are spaced about the same as the tightening tool that Eric mentioned. I used to use that method on my old Hobie 16, and it works pretty well.
Good luck,
Tim Johnson