I'd seriously consider a fixed 4 power scope. There are several good ones out there. Leuppy for sure, but also check Weaver, Burris, Sightron, etc. Of course there are the top ends like S&B, etc. but they are very pricey.

Another option would be a Trijicon. It offers a "lighted" triangular post (BAC) reticle that doesn't require any batteries.