It shouldn't be a problem -- we took ours off a couple of times a year. You may have to untie the lazy jacks first, then just slide the stackpack off with the sail (assuming yours is built like ours, where they have to come off together). Then release the lazyjacks some more and re-tie them to the boom.
If you've got the type that's actually sewn to the main, you may need a sailmaker
to physically take it off. Most aren't sewn (at least of the ones I've seen/used) and are totally separate and easy to remove.