Maybe your dad should start a blog? The technical background story behind your link is at least interesting to the HN crowd and Do It Yourself is popular as well.

There are probably highly paid jobs for doing unique things with wood, but the problem is finding and getting them. The general way is networking. Having a blog would help with getting known.

Maybe an online blog is not the right thing in his world, which is probably "lower-tech". Maybe an email newsletter?