Modular Synth Panels

Have any of you used or tried any boards and kits related to synth diy
from other sources other than us.  Like Schmart boards and Hobby
boards et al.

I am looking at this stuff and thinking  +5 volts could save me a new
psu if it is linear enough, the 4 channel relay could groe into an fx
switcher or not.

Is these a master list of diy boards kits and related stuff that is
updated regularly.  I missed out on the Klee board for lack of a place
like that to go to.  It may be out there and need revising,

Synth boards, kits, panels , panel fabricators, metal fabrictors,
graphic houses, etc...