the biggest issue starting out is finding a straight frame in your size. that one's on the small side. i have no knowledge for brifters (i prefer classic downtube brazed shifters), but hopefully someone will help steer you down the right path.

edit: if you have a basic tool set, you can add the minimum required bike building tools for around $100. park cone wrenches, for example, are around $5/ea. their bb and headset wrenches are $15. be forewarned, once you build one bike, you'll want to build another.

and finding a donor bike for parts is the way to go. remember, you can clean, overhaul and polish just about anything, given you have the time.