none that are cheap, you have the popbox v8 at 99.99$ that meets all your needs but the seamless branching. is using clownbd out of the question to remove the branching?
Or an option would be find a used popcorn hour a200/210 as it had an unsupported bd stack so seamless branching will work but they are still around 180$ if you can fine one. Find a dune smart series but they are pretty $$$$. or I think the mede8er 500 would also work but its still like 169$