The "do everything" tank - Surly LHT

My build list for this would be

• SRAM S500 levers
  
• Microshift bar end shifters
  
• SRAM S300 / Rival Cranks
  
• SRAM X5 long cage
  
• Front mech of your choice
  
  

This is looking quite likely actually.

Front mech could be a 28.6mm band on Rival, and swap out the S500 levers for Tektro V levers. XT V brakes and a medium cage rear derailleur with a 11-34t cassette giving a low gear of 34/34 or 27.3 GI up to 50/11 or 124.2 GI with 37c tyres and 172.5mm cranks.

Talk to me about the Microshift bar end shifters.. why those over Shimano/Sram?