If you decide to go for the fake gars, dont go for den Hujeta, it sucks and is damn ugly. Go for the Boulengerella Maculata instead. They are so cool and without doubt my favorite fish.
I bouth a "Alligator Gar" from a European importer. The gar turned out to be a Florida/spotted, witch makes me happy. Try and check if it really is Alligator gars they are selling at your importer.
Greets, Christian.