I have a sticky on my computer with that information, but not sure if from Freddd. From here for sure.
Methylcobalamin: Enzymatic Therapy B-12 Infusion 1000mcg/1mg, or CountryLife 5000mcg/5mg, #6304 (as you noted above)
Adenosylcobalamin: Anabol Naturals Dibencozide
L-carnitine Fumarate (LCF): Doctor's Best
Methylfolate: Solgar Folate (as Metafolin)
Some use Source Naturals Dibencozide for the AD12. If you look around there are a lot of threads about this.