Originally Posted by Tartan34C
You can put two small boats (17 foot up to about 25 foot will work) over her separated by 4 by 4 wood beams lying on the bow and stern of the two boats. Put slings under the Columbia and lift with a come-along. You will one need to support 1750 pounds on each boat with only 857 pounds on each of the four lifting points. Its safe, controllable and cheep to get everything together.
I'm sure it worked well for you but it sounds like a recipe for disaster for a bunch of recreational boaters and divers who have never raised a sunken vessel before.