Take a standard .30-30 Marlin 336 with the 20" barrel.
Add a XSS (used to be Ashley Outdoors, now it's Express Sight Systems) Scout Scope mount and whatever scope you want (2X Leupold or Burris my pick).
Add the XSS Ghost ring sights to back that up. Total cost minus scope is about $450 ($100 for the scout scope mount, another $100 for the GR sights, about $250 to $300 for a used or new Marlin).
Basic Uncle Mikes sling and a butt cuff for rounds (another $25). You're done.