This is a great idea for GTD on your project, but it leaves out something pretty significant that YC also gives you, when you go to do your next round of investment: validation and DD. You see investors offering deals on the spot at demo day, not just because you show them 5 weeks of traction, but because of their trust in PG and crew. They probably discussed your co. with PG during the past 10 weeks without you knowing about it.

If you run the process on your own, at the end you'll have something built, but still have 1-3 months of work ahead of you securing another round of money.