Would you even attempt this?

My husband, children and I were invited by my husband's mother to go to their house in Florida for the last week in March. I have five 5 month old babies. His mother is having a party for her husband's (my hubs step-dad) retirement. His mom really wants to see the kids and she has even volunteered to pay for the flights. I really don't think I would be able to do that with my kids. The thought of lugging 2 strollers, 5 car seats, all those suit cases, like 5 carry-ons, and 5 babies around an airport freaks me out. And I know I would need to take along probably my mom and dad to help out with the kids on the way there and back. I feel bad because she really wants us to go to the party and my husband's family really want to meet them. I live in NJ so I think it would be about a 2 hour flight. I can't imagine that either, and having preemies is also scary. I don't even like to take them to the super market with all those strangers. I mean we could drive but 22 hours! I don't think so! What would you do if you were in my position?