Cuban gars and tropical gars will probably be cheaper for you than in the U.S. although the sizes you want will probably make them the about same price as a smaller one here. I know that the tropical gars that Stones Aquarium in Singapore brought in last year were way cheaper than the ones that were brought in to the U.S. a little bit after that; they also typically have Cuban gars for at least half of what we would pay here.
Longnose gars haven't been commonly offered for sale in the U.S. for a little bit now as the only supplier that I know of went out of business. I ordered some through an LFS last year, and they unfortunately turned out to be Florida gars.
I have only come across a few morph gars for sale here in the U.S. in the past few years, and they've sold in the upper hundreds to lower thousands (USD) depending on their size & morph. Most morphs available are in Florida gars & alligator gars, but morph longnose gars & tropical gars are out there, too. The tropical gar farm that I know of has had white tropical gars for sale for the past few seasons.
Good luck on hybrid gars considering that they're nonexistent in today's market to my knowledge. If you do manage to find one, it will probably be a Croc III (longnose gar x alligator gar). You might get lucky and find a mislabeled one for sale, but that's going to be a one in at least a billion chance.
All in all, your best bet is to check out the prices in some other country such as Singapore in order to get a better idea as to what you're looking at as far as gar prices outside of the U.S. go.
