If you can't get one from EMF (their website says they are "temporarily out of stock"; I am thinking "permanently" out of stock), you can procure one if you are willing to do a bit of legwork.
The G&G replica is nothing more than an 1851 Navy .36 brasser with a smooth cylinder and part round/part octagon barrel. Just procure a Pietta .36 brasser and go from there.
I like the Pietta as it is less expensive than any Uberti or Pedersoli, and it works well, in my experience.
VTI has the barrel for $125 (A345/CF36) and the plain cylinder (A344) for $95. Ouch!
I guess it depends upon how badly you want one.
https://vtigunparts.com/store/shopdisplayproducts.asp?id=66&cat=Pietta+1851+Navy
Since Bass Pro Shop has taken control of Cabela's as of last year, don't expect much in the way of BP sales or diversity of guns from Cabela's as in the past.
I was in the HVAC/Refer industry for years before retiring and the parts suppliers make their beaucoup money upon that. No different here.
I wish you very good luck with your endeavor, sir!
Jim