is this a good deal?

OK Justin....
The Tranny WILL work in a abody... Just the Shifter will not.
The O/D 3/4 Speeds have multiple Shifter Mount Pads on them.
$200.00 for the set up is JUST at the edge for a GOOD running (and I mean I drive it around the block 1st) used '85 Slant Six with Bell Housing, Clutch set up, and Tranny to me.
Now IF it has the Super Six Intake and Carb...
That steps up the deal quite abit as people (Crazy I think) on ebay will pay $200.00 just for the Intake!
This set up was for mileage way more than any kind of performance.
The pluses to an '85 is that you already have the Hardened Valve Seats for uleaded gas and NO Spark Pug Drool Tubes.
My opinion only.
As everybody that knows me knows; I am a cruiser not a racer anymore so I love my Slant Sixes!

Hope this helped somewhat.
Later,
Bruce B.