Few things not right is the throttle return spring, should be darker green with a orange stripe, Ign wire holders should be painted all the way, pie tin should be red, The dip stick on the inside of the exhaust manifold is the way i found it and is an original DS.
I can't remember back to the 2 68 383's I owned , but did they use studs and nuts with captive washers on the lower outside valve cover bolt locations ?