I'm not sure what Route i should take

Formula S will have a 7 under the F on the fender tag, or look at the buildsheet if you have it for a 7 under the 36.

Don't over think it, keep it simple- unless you have gobs of money.

Personally, for my 67, I'll be 'restoring it' to day 2 status, meaning what it would have looked like when the first owner brought it home and hopped it up. Pretty much how I got it, Cragars, after market wheel, Hurst, scoop, tach, etc.