This is the schematic. As for your other questions, look at the golden reference LV thread and the "And now for something completely different" thread. That thread devolves into discussion of two or more amps. As far as build threads, there aren't any, nor are there guides, etc. You have to read the threads and take your best guess on some things.
Kevin retired from Northwestern University, so none of those links work. The current archives are here:
Documents: https://drive.google.com/drive/folders/0B7egryukiT7_TFlEQlBRejdVdDQ
Gerbers: https://drive.google.com/drive/folders/0B_iJFfZStuVhSE5nOHBVdTByR1k
cfa2cmirror.PDF