1979 Sovereign 31 (factory solar)?

[hippietye]

I recently bought a 79 Sovereign (basket case).
There is no outlet near the univolt
(the uinvolt is missing) It appears the coach
was used with solar power only.
There are outlets on either side of the coach,
but none near the center.
There is a charge controller # CC-20
Solar Photovoltaic--by Heliotrope General.
There are also 2 leads (4/0 copper) that go
outside to the front of the coach.
Has anyone seen a set up like this?