Replacing bunks with boat on trailer (too far to get to lift or splash)

[ScottinAZ]

ok, boat and trailer have been out of the water since at least 2013, and the bunks are shot. Since I live about 40 miles from the nearest water to splash the boat (finishing rebuild), I would like to replace the rotten bunks with new wood before towing a longer distance. (the wood is REALLY bad on one side and I dont want it to fail halfway there and punch a hole in the hull)


What would be a good way to get the hull up about an inch or two above the bunk to slide the old one out, and the new one in? A jack and a pad under a strake to spread the weight, and keep it from slipping?

boat is a little 16 foot bowrider with a 120 I/O Mercruiser in it.

 

[racerone]

Pull boat back about a foot or more on the trailer.----Raise and block up the transom.------Use a jack to raise front of the boat.----Replace bunks.---Done.