Call me crazy, but I’d recommend trying D-Sonic M3a amps that could give you 12 amp channels @ 400W per channel for only $6250. You can demo them at home and return them if they don’t knock your socks off, but if they work you’ll save yourself a small fortune. Best of luck.
https://www.d-sonic.com/amplifiers/
https://www.d-sonic.com/amplifiers/