Sean,
They are having a lend of you.
Ask to see the four [at least] empty tins of antifouling they put on your Top Hat.
Have they given you the correct BILL!
Your $1300 quote was about right....
This is a quote I got from the marina in Port Macquarie [NSW] to compare our cost at Laurieton where we can do our own work.
Description of works
SET UP AND SLIP VESSEL, PRESURE WASH AND PREP FOR ANTIFOUL. SPOT PRIME
WHERE REQUIRED AND APPLY TWO COATS OF ANTIFOUL. RETURN VESSEL TO THE WATER
SET UP--------------------------------$66.00
SLIP& RETURN----------------------$234.08
ADDITIONAL DAY 1 DAY------------$110.00
PRESSURE WASH---------------------$99.00
PRIMER 1 Lt---------------------------$38.50
ANTIFOUL 4Lt-----------------------$242.00
CONSUMABLES------------------------$33.00
Labour 8hours @ $65.00------------$572.00
Total GST included $126.78
-----------------------Invoice Total $1,394.58
Payment is due on completion of Work
Hope this helps. Phillip.