What I am thinking about is the final solution. It seems to me that just drying the core, even "if" successful does not solve the underlying problem. There is a source of moisture most likely coming from the bottom center of the boat, but possibly several other places. If you don't stop and seal that the invasion of moisture from wherever it is coming, the problem will simply continue.
I think that getting the balsa out of the equation would go a long way to stopping this wet core issue. IN my opinion it is wet core issues that devalue these boats, so if you can prove you have eliminated the balsa core, you are not only fixing your boat you are improving its economic value. I agree about the amount of area to be open at any given time in a particular area of the hull, but I think you could be working a couple of different sections that are well separated. I plan on using foam core and epoxy resin and I expect that should completely stop the migration of moisture from a particular source or even from some vague direction.
I can be working on this nearly full time as I'm recently retired and expect that while not the most fun project I have ever undertaken this is manageable. We have one advantage here in our area and that is while it is wet in the winter it is usually plenty warm enough to do epoxy resin work.
I really want to get these hull issues off the work list, sooner rather than later. Hopefully by next spring I can pull the tarp off and get after the topside issues. There is also a nice work list for the interior including the new sole that I get to build, so lots of places to spread the work around.
