Old fashioned method might be the go. If you can get the boat and trailer
into the garage, use blocks / jacks / levers to lift it off the trailer.
Then you progressively ( i.e. slowly) move the trailer out of the garage a
few inches at a time, swapping the supports around as it goes. Eventually
you have the boat sitting on blocks in the garage, with tyres or chocks
stopping it rolling sideways. It takes a little while, and having a few
extra people helps, but I suspect the time is less than building the
trolley.
Once it's on blocks, it's easy to move small distances - again, levers,
blocks, jacks. Hydraulic jacks sound good, but I'd back three people, a long
piece of 4 x 4 hardwood, and lots of assorted packers / blocks against
hydraulic jacks anytime.


David

"Mark" wrote in message ...
Hi all, just bought and older 76 starcraft fiberglass boat with a ford 302
sterndrive. I want to get this boat into my garage to work on it over the
winter but if it stays on the trailer it's going to be impossible to move
around plus I'd have to cut the tongue off the trailer so I could shut the
garage door. I'd like to try and get it on a cradle of some type and had a
thought.

The idea that I had was to build two dual frames about 1.5 ft deep made
from 2x10's with 2x4's for spacing that would go from the keel to the edge
of the next hull ridge( this is a tri-hull) so would probably bee about
38-42" wide total. I'd use two of these frames one for the back of the
hull near the transom and one a little more than mid hull. The wood frames
would be shaped to the contour of the hull and shimmable if needed. On
each of the wood frames I'd like to put 4 heavy duty caster (5" tall, 800
lb capacity each) so that the boat can be moved around slightly to
increase my work space depending on the area I'm working on. I didn't plan
on painting the boat because of it being on a trailer but I just might if
it's on a cradle setup like this and I can get to most of the hull. It's
currently on a roller trailer so it shouldn't be too bad to use the winch
and slowly roll it off onto the frames while moving the trailer forward.
Should be able to crank it back on in a similar fashion.

So being my first time attempting anything like this, just wondering if
I'm going to kill myself while painting the hull underneath? Bad idea,
good idea? Any advice?

Thanks,

Mark