And, what is the problem. What would you do if, instead, you found a brand
new, in the box, SP-600. You would have to leave it in the box and not
touch it. Even worse would be to find one in a sealed box. Then, you could
x-ray it and store it safely.

But, in your case, you will restore it and know every inch of it. And,
because it is less than perfect, you can use it. You can even make
modifications to it without getting the blessing from the pope.

If you do not have 1/2 a dozen rigs in your collection that start out like
that, you do not have much of a collection. I know some collectors that
consider every rig that is a bit less than perfect as a parts rig. That is
an admission of failure.

Colin K7FM