Removeable Headstay II

Does anybody have a tried-and-true method of deploying a 50-something sq ft storm jib hanked-on on a boat that normally runs with a roller-furler?

My question really boils down to:

Can I get away with using a beefed up jib halyard, which isn't necessary with the roller furler?

If not, are there any suggestions about A) stay diameter, and B) Method of attachment to the mast?

Any really simple, proven methods?

I can easily envision going forward and hooking up to a very substantial u-bolt thru the foredeck, then tensioning it with one of those stay-tensioning folding things. I have not figured out why I would not be able to store this against the mast, the end rolled and stowed on the cabin top

I'm not going to deploy this unless I am concerned about serious weather (well, for practice I guess sometimes), so the integrity of the attachment to the mast, and the stay size are pretty important.

Any suggestions backed up with experience, either first or second hand?

Thanks,

Richard Bunn
s/v Martha Daggett