First Project - SSCX Spesh Tricross Singlecross

First ever single speed project for me, I guess this build has probably been done many times before but I'd appreciate any help that you can offer!

Picked this up only a couple of days ago after being on the hunt for either a Tricross (135mm spaced), Singlecross or CaadX

Proposed re-build

Already ordered - SRAM Force 1 Crankset (GXP / 42T)

• Sun Tour SunXCD 100/120mm Hubs 32 spoke holes (The rear has a Shimano Freehub for 5 or 6 speed cassettes so I figured to give myself plenty of adjustment for chainline I could use this, space it out and not have to worry too much about what I use up front. These also come with QR skewers, are these OK for use with a single speed? Any slipping?)
  
• DT Swiss RR 511 rims (after some tubeless rim brake to run some Challenge Almanzo / Challenge Gravel Grinders / WTB Byway / WTB Ventures in 40mm if they'll fit)
  
• TRP RRL or Cane Creek V Drop Levers (undecided)
  
• TRP CX 8.4s (looked at getting some RevoX Cantis but didn't want to have to deal with the judder that I've read about)
  
• Either an AbsoluteBlack Single Speed cog or WolfTooth Single Speed Cog
  
• Probably a YBN 11 speed chain (use these for other geared bikes and they've been great)
  
• Kalloy Uno stealth stem on the way from Taiwan
  
  

Still trying to decide on reasonable priced carbon post and bars.

The headset bearings are shot so I'll be diving back through the forums to read the advice about swapping that out for the Cane Creek IS one - can't remember who did it here recently. Hopefully it's fairly simple!

I didn't angle the bars or levers, taken this pic 'as is' from the seller.

Forgot to line up the front wheel valve for picture too...

face palm