So I got the tub I was looking at for $100. It's a '96 6 Person Seven Seas which has a Spa Builders 'Luxury Spa System' LX-20. I would officialy call this a rehab:
Ribbon to control panel was cut and pieced back together
Various tubes are blocked off, one has a vice grip around it
The frame pretty much disintegrated when we took it off the trailer

Can anyone point me towards more information and/or manual about this system?

On the enclosure:
Spa Builders "Luxury Spa System" LX-20
P/N 3-70-0077
EP-7-600

On the board:
S.B.S.G LX-20
3-60-0029

Thanks,
Bryan