Just a suggest..... Mike Vink has been doing a wonderful job, working up instruction sets for My projects. He also has the ability to do correction, & update work, (In Autocad). It may be worth Your while to contact Him, (It is great to have other talented folks helping as You, move forward). Carl P.S. I would be glad to give You the .dxf, or .dwg files, of the full interior for You to scale, and edit, to fit You fine model, (It would save You more than a few Hours). I am heading to the Cape in a Hour or So. I am going to meet with Scott Carpenter, (among others). I will bring back as much new information as possible.