It's a good rifle so I'd put a decent scope on it. If a 3-9x40 will meet your needs then I'd go with a
Nikon Team Primos. It's the equal of the Nikon Monarch but instead of paying $350 for a 2-10 you'll pay $210 for the 3-9x40 from Natchez, or $220 from SWFA.
If you need more magnification than that then the minimum I'd look at a Weaver V16 4-16x42 for about $275 or so.
If money is too tight for either of those then I'd look at Weaver's
V9.