There are bolt-on kits for front disks on AD's. Also available are bolt-on power brake MC's, but the fill hole doesn't line up. A remote reservoir covers that problem. The 60 235 sounds good. There are many running the T5 tranny from an S10 or Camaro as they bolt to your bell housing. A new rear, new clutch plate and (possibly) custom drive shaft will be necessary. I'm thinking of that route for my 3/4. Another option is converting to automatic. There are kits to bolt a TH350 or 700R4 to the back of your engine. Check the links here and the parts suppliers. Headers and a new intake (2x1 bbl, 2 bbl or 4 bbl) would certainly add some punch. If you want to do the engine, many here will recommend Santucci's book, and finding a GOOD machine shop.

Have I missed anything, guys?

Current fleet (subject to change w/o notice)
\'49 GMC 3/4-Ton , 60 Austin Healey Frog-eye Sprite (some assembly required), 2011 Dodge Avenger, 2015 Jeep Cherokee. No, they don't all run.
My other ride is a (B737)no, (B767)no, A320.... Update... was Embraer E190, now Boeing B787.

Knowledge is a wonderful thing, but ignorance means you don't know you can't do something.