I agree with not buying the entire set, the 20% still leaves Park Tools high in the price range. When you complete the course you can determine any specialty tools for your components Park, Pedros or VAR makes. Most of the tools you use a lot like the allen wrenches mentioned and basic hand tools can be bought at Sears or Lowes much cheaper and a better guarantee to boot. I agree with the pedal wrench and maybe a Y-wrench from Park but not many more at this point. the only other specialty wrench I would get is a torque wrench that reads in Ft/Lbs and/or Nm or get three of the preset torque allens for use on the stem, bars, seat and FD.
Good choice on taking the course too.
Bill
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Semper Fi, USMC, 1975-1977
I Can Do All Things Through Him, Who Gives Me Strength. Philippians 4:13