Hi Michael -- Sounds like a very interesting project. I'm in the Middlebury Vermont area and could help you out with joinery design, on going consulting and/or joint cutting and raising. I can also put you in contact with the Huntington, VT based structural engineer I use if you just need someone to run some calcs for you.
Please call or email to discuss further.
Thanks --
Michael Cummings
www.houseinthewoodsvermont.com802-388-0118
houseinthewoods at(@) gmail.com