Update: They made their goal!! So you should be able to buy the boxed set at some point in the not-too-distant future. I can't wait to hear it!
This is an incredibly worthy project seeking funding through Kickstarter. I pledged enough to get myself the boxed set. I know Murphy is going to pledge as well. Please help them out and make this happen. It is a treasure trove of Doc Watson (and family) recordings entirely self-produced from within the family.
There are some pretty awesome rewards, including (if you have deep pockets) Doc's braille hymnal and harmonica.