Surly Bike Owners

Need a suggestion: I have not been using my Pacer (SH4700 and DT Swiss R24 wheels) in the last 6 months or so (not commuting anymore by bike). I have come out with 2 ideas:

• keep it, remove mudguards, put on 700x32 tyre (Tektro R539 brakes) and use it for light gravel ride (like around Lee Valley and wetlands)
  
• sell it and buy a single speed gravel bike (Marin Nicasio SS)
  
  

Any suggestion?