Well, I gave it another shot today and it turned out even better than I expected or hoped it would...
Degreasing the frshly sandblasted parts in lacquer thinner...

hot water rinse...

Into the stainless steel tank with 1 1/2qt of Parkerizing solution...

Parkerizing process going on...

Into the hot water rinse after 25 min of Parkerizing (bubbling stopped)

After the rinse, parts were submerged in WD40 for an hour to cool down...

Cleaned up and heated parts , coated with grease...