[R-390] R-390A help

[TChirhart]

This is my first R-390A project. I have an Imperial 1963 vintage R-390A
and the previous owner may have modified it. First of all, all 3 fuse
holders are either missing or have been bypassed, the AC, B+ 1/8 amp and
B+ ¼ amp have been bypassed with F-102 B+ ¼ amp fuse holder missing.. 

F-102 B+ ¼ amp fuse socket, near power supply is missing and two wires
soldered together. 
F-101 AC 3 amp fuse has been bypassed, fuse socket broken
F-103 B+ 1/8 amp, fuse bypassed inside.

In the power supply, the 2x 26Z5’s are missing, the metal tube sockets
crimped and a selenium rectifier installed over the sockets and the
F-102 fuse holder is missing, apparently this is a modification. 
But why would you bypass the AC and 1/8 amp B+ fuse?

Am I missing something here?

It makes no sense to bypass all 3 fuses, especially the AC fuse socket.
The fuse holders are damaged, but can easily be replaced. I would hope
that the previous owner had enough sense to replace a simple fuse
holder...but...

I’ve pulled out all the tubes and found over half of them bad or very
weak. 

This is my first time going into an R-390A so I'll need some advice from
you experts.

Also does anyone have the top and bottom covers for an R-390A?
Thanks in advance
73
Tom K4NCG