i need 3 wise men to answer 3 ?

[3/4tonterror]

Puttin together my 69 4x4.
1]what goes in the rectangle hole under the steering column?
2]the clutch rod boot looks to close to the exhaust, im worried about fire with it that close. whats wrong, what to do?
3]is this where everybody elses z-bar is mounted on the motor, looks like i cant get headers to mount with it there?
Thanks for all help 69 4x4 c-20