Do you need to argue with the marina to use the bubbler?
If you mean you can recover cost by parting out the $4k worth of stuff, that can be a ton of work and take time. Depends on how desirable the stuff is. Boat Angel is only going to get you a tax deduction and then only for whatever they actually sell if for, whenever they actually sell it. If they came and got it, you might be ahead the winter storage costs. Not sure if they'll take an inoperable boat.
Enjoy your Thanksgiving and think about it tomorrow.