A 1979 truck will likely be purchased from a private party. One could try doing a search on eBay Motors or Craigslist to find the desired truck. Also, local classified ads can be a great resource.
dexron
in the transmission
No, Nothing will line up are even match up.
oil or tranny leak and dripping on exhaust
with a torque wrench
Check out this site, http://www.nadaguides.com/
Rochester Quadrajet.
yes
That is the ignition coil.
www.usedpartscentral.com/used_chevrolet_parts.htm and www.ebay.com are two places where you should be able to find a seat for your 1979 Chevy.
Who said it won't ? It will fit right in there with NO problems
no, it has a mechanical linkage style clutch operation.