Thanks for posting this, John, though I'll mention it's a couple years late
My notches are at 14" and 11" from the footwell side of Bulkhead 8. Note to builders: the 14 5/8" notch will run aft and the 10 1/2" will run forward. It doesn't have to be too precise. As long as the outboard one can fit the width of the laz hatch it'll be fine.
For those interested, here's the blog entry for this part of the build. Hard to believe it's been almost exactly two years.
http://sunmonkeypocketship.blogspot.com ... -come.html