Thanks, Stan. I was also thinking that having the kit would allow some easier modifications if needed. All those tiny little electronic gizmos on the one I have in the video are really tiny, and pretty small too. 
I think having the PCB would be a big plus though, or at least a good start at putting something together and modifying to suit one's needs as you suggest. Thank you for the search, I am going to order a few as soon as I find them.
