No. 1 is the easiest. See my more detailed comment below.
Contracting at $100/hr will gross you $10k in 100 hrs (or about 2.5 weeks worth of work). You probably meant net so double it and you're somewhere in your ballpark.
Almost anyone that is a competent professional programmer should be able to find and execute on this much side work at a similar rate. If you're particularly good, have a particularly specialized skillset, a clearence, etc you can easily command a substantial multiple of this rate and accomplish your goal in even less time.
And you're chance of it working are very high.