I had the Krytac crb trident 2 as my first gun
bought it used, it had an upgraded hop rubber and barrel
other than that it was standard
It was picky with aftermarket magazines, but shot flawlessly
If I was starting out, with your budget (and a Ukara to avoid two toning an expensive pew)
Id be looking at Tokyo Marui models
As they need nothing done until you break them, which if left standard and untampered with, never happens 🤞