So step 1 carefully remove every fitting from the boat box or bag em. Bulkheads, compression post, teak trim, rear bulkhead, winch trim, and all hatch covers. Winches ( not the keel winch yet), cleats, motor mount, rudder hardware, stanchions, pulpit, stern pulpit,
Step 2 get boat off trailer remove 550# keel find something to move keel with. Take out the keel winch and lifting hardware.
Your mast is worth more than a flag pole. As is the boom. Now you can take hull to the dump.
Step 3 list all your wares on let go, facebook, and eBay.
Step 4 wait for the cash to roll in
Step 5 still waiting (sold the winches)
Point is it’s a lot of work, not much profit, and you still have to pay the dump to take the fiberglass carcass off your trailer. You are better off donating it or listing a project some other bright eyed sailor (sucker) will gladly pull it from your barn and put it in his.