<< I thought it looked really interesting, then I saw the price. $1199. >>

How does free sound to try? Spleeter is free and performs well against RX8 in head to head comparisons on the videos I've watched.
BIAB Ultra Pak+ 2023:RB 2023, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.