Go to the TD section, there is a U.S. seller. She carries all levels of reps.
There are also modders listed who sell improved Chinese reps and offer services to improve something you want modified.
As far as websites from sellers based in the U.S. selling high quality foreign replicas (non-authentic) of anything, it's rare because it's a violation of federal law and the Justice Dept will come down on them quickly. Many agencies are capable of bringing federal cases and catching you if you make it your business.
There are U.S.-based sellers but they also have to wait from factories, plus compete with sellers in China and Singapore who have essentially regular direct factory access and can navigate the language and system there without the Justice Dept bothering them. They can undercut anyone here.
Selling here is risky, costs more, and you're geographically and culturally at a disadvantage to competitors.
Any sellers in the U.S. selling replica anything can never manage to do it very long. The URLs tell the story, they're always foreign-based, temporary, and if they are a .com they require layers verification to avoid penetration by U.S. authorities. Also, U.S.-based sites can be investigated and shut down by foreign allies through cooperation with our federal government. Usually a URL notice is enough. The U.S. shuts down sites like these every day, all day. U.S. sellers are fairly easy to track and prosecute. In cities like here in Phoenix, NY, L.A., and Miami, you see a good amount of seizures and prosecutions. Confiscated goods like reps total into the billions each year.
It's far easier to sell drugs or guns and get away with it here in Arizona.
