Shadow - I think at some point you should
haul out and do it properly. You want to get all that old stuff off, you want to get a good look at your
hull and you probably want to get all the thru hulls replaced.
You might even have some shaft
work to do.
Save up your pennies, dive on the
boat for now but get everything under
water squared away with a good haul out where you get all the
work done at once.