I am not saying it was designed for the 007 but it makes me wonder. It must have had a 'destination' phone for it?
I have not heard the KGSS that Justin built, but IMO you may end up paying top dollar for one. It might be better
to get someone to build you a new KGSShv, at least it would be brand new, never used. And you could have an influence
on the parts qualities and even the look of the casework.
On heat, the KGSShv off-board does not get hot, only warm to touch. The on-board may get hotter, not sure.
In fact my KGSShv runs cooler than my Stax SRM-717 which is an on-board design.