Re: Strat Set for Squier CV 50s Strat
Duncan has sold thousands of SSL-1 pickups. You should be able to find a set used for your price range. If you need/want a little more "meat" on the bridge, Duncan has sold slightly fewer SSL-5 models, and again they are quite available. Another great option is everyone that ripped the stock Fat 50s out of their American Standard the past few years.
Strat aficionados can debate the finer points of vintage Strat pickups (you can spend 2-3xs as much to get the last 10%) but either one of those will give you a great vintage style Strat tone that works well with overdrive.