...to go through it before you install, or are you needing one already freshened/still 'good enough'?
...the needed bits being scarce at best...
How much of a motor are you looking to hook up to it?
...use the 'proper' trans. for that motor? Shifter (re)location in your chassis? The one ribcase I own, I'm keeping... at least for the time being... (and, you'd probably want to 'freshen' it prior to use, anyway...).