I think it sounds great, too!
Cranberries are so very tart that even the canned and handmade cranberry sauces have sugar in them. You might want to take it for a test drive before the big day, just to see. If you need to add some sweetness, maybe substitute the straight lime juice for a splash or two of Rose's sweetened lime juice. That stuff is yummy!
I've got to catch up with my BellaOnline writing; that's one of my biggest plans for the weekend. I'll write an article on drinks to serve with turkey and link to your recipe here in this forum, if that's OK with you, Anna.
And thank you so much for posting it. I don't have any of those ingredients on hand but they're on my shopping list now!