Trying to build a surly cross check steel frame with flat bars. Probably use it in the bad weather, when in the city and bike paths and trails.

Thinking of using sram x5 or deore shifters and derailleur. Any other recommendations? Want something easy to find since I'll have to order online and hopefully not to expensive.

Want a double crankset. The Shimano gxr 48/30 should work but expensive. Anything cheaper that's around that gearing?