Given my rough requirements and comments on these other designs - can
anyone recommend a design or designer that I missed? I'm considering
shifting my window up a few feet to include the 18/19 ft range. Seems
to expand my possibilities a bit.

Thanks!

Take a look at the Hartley Trailo\er Sailer
designe. I'm planning on the 18' one.

http://www.hartley-boats.com/

Frank