Regardless of what scope you get, it is only as good as its mounts. See through rings of any sort are asking for trouble and will never allow your scope and rifle to perform at its best. If the option to use sights is really important I would at least get a quality set of quick release Weaver type rings. Really it's hard to go wrong with the traditional steel dovetail front/windage screw rear setup. You can find them in excellent used condition for low money on auction sites if cost is really a factor. If you are using a cheap or marginal scope, quality mounts will help it to keep its zero and last longer.
I really like Leupold scopes and the Japan made Bushnells and Weavers. The lower cost but not cheap scopes made in Korea and the Phillipines for Nikon, Bushnell, and Swift are really good for the money new and dirt cheap used. I have a Korea made Swift 1.5-4.5X21 on my Marlin Glenfield 30 mounted in steel Burris rings and base. It has held its zero 100% for five years of shooting, clambering up and down trees, and rapid changes in temperature and humidity. Took a nice doe at 85 yards on opening day with it. Point of impact was exactly where I aimed.
If I only had $50.00 to spend on a sighting system for a rifle my first choice would be a Williams receiver sight, slot blank, and front sight. If not that, an older Japan made Bushnell in Weaver mounts.