They are 5on 5 chevy just like all the others
No they will not.
Yes
depending on model of truck.
No, car and truck wheels are different in size. Car and truck wheels will not interchange.
Diagram of 1990 chevy truck steering column
yes, they should be identical.
Yes it will.
Which engine?
That would be the 700R4
You could do it but it would be much cheaper to just buy a good used 1990 GMC 4+4 truck and drive it.
In the truck!
NO. It has a cable.