Unless you must have it, I'd step aside and invest in something less neglected. Got to see it for what it is, a dog, and a mutt at that!
The model is not a top line Bottecchia.
The components, what remnants of a Campy group, are middle of the road.
The 105 pedals are missing components.
Dura Ace aero levers?
The frame's all rusted, the decals and paint scratched, but isn't as bad as some samples.
The chrome is pitted, components corroded.
$100 max, if I was liquored up, hit on the head, and inspecting it in dim light.
Remember, you are interested in an Italian example as a keeper. This one at best is a lot of elbow grease and flipper.