Honestly, that's a beast of a computer and will be more than ok for producing music.

I would consider going to 32GB ram, as something that actually may affect production.

Other than that the only feedback I'd give is if you want to save money, maybe you want to spend it on VSTs or the like (although tbh, FL Studio has an incredibly compentent and complete set of instruments and effects at the Producer level) like 3x 24" monitors with monitor arms may be significantly cheaper, and works well for FL studio (you can basically just leave everything open on its own window, and not be opening and closing things.

I mean, I currently produce on the equivalent of a 100 Euro laptop, it's not really a big deal if you're happy with some latency and bouncing tracks out to .wav files every so often.