Ok, awesome! So I'd definitely recommend 2nd hand Studio One 4 Pro and you'll be left with 200-250eur for some additional instruments. The audio effects that it has are great, but instruments are pretty limited (but good, nonetheless).
Have a look if this is something you'd want. They have 30 days fully featured demo.
https://www.youtube.com/playlist?list=P ... y2IUIEVhlB