Help me build my friend a depression-busting CX bike!

So I have a friend who is rather down on his luck. His long-term girlfriend left him, he only gets to see his kid at weekends and he doesn't really have many friends his own age. Poor guy has been through a lot.

After talking to him about getting into cycling, I want to build him a CX bike - something good for the road, but which will take fat tyres for some gravel grinding too; gears to get him started; and not a deathtrap!

So here we are, starting absolutely from scratch. If I can source the parts, I'll build it up and give it to him to get him out on the road and smiling again. With build pics as we go...

NEED:

• Frame (56cm or so)
  
• Fork
  
• Headset
  
• Bars
  
• Stem
  
• Seatpost
  
• Saddle
  
• Brakes (cantis or mini-Vs, I guess)
  
• Front derailleur
  
• Rear derailleur
  
• Crankset
  
• Cassette
  
• STI levers
  
• Cables
  
• Wheelset
  
• Tyres (25c road for now)
  
• Pedals (probably just platforms for the time being)
  
  

So, forumengers... what can you offer me? Cheap parts, free parts... doesn't have to special to you, but it will be to him. Please help me make someone happy again. :)