WTB brake levers, 10 sp shifters, TriRig brake, disc hubs

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I’m building up a TT bike as inexpensively as I can and am looking for a little help with a few items:

  1. SRAM TT500/TT900 or Bontrager Race Lite/Race X Lite brake levers
  2. SRAM TT500/TT900 10-speed shifters; I suppose I’d be interested in the R2C variety, too (but probably more than I’d like to spend)
  3. TriRig front brake (black)

(And another random one, not for the TT bike: I’m looking for relatively inexpensive 28-hole centerlock disc hubs that are 11sp compatible.)

Thanks. I appreciate the help.