Building an app – how do you get a team going?

I have a pretty good idea for a web app I wanna build. I've been grinding out for a couple of months trying to become a developer as fast as possible. I can do basic html and css, and been trying to catch up on rails and javascript.

I'm doing the web development immersive from general assembly next month so I'm hoping this will accelerate the process.

However, the app I have in mind is pretty tech heavy. I'm pretty sure it's gonna take me a loong time to figure it all out by myself.

I have a business that allows me a lot of free time and a few extra g's to hire someone, but I' don't think I could quite afford paying a competitive rate for a great developer.

I really want to build this thing, even if it takes me a year and I have to do it all myself.. but I would rather work in a team.

Any suggestions on how to get a team going if you can pay someone (let's say like 40k/year) for some high tech skills.

Obviously hiring someone that's gonna just leave and steal my idea would be like my worst nightmare too haha.

Ideally I would build a prototype and submit for ycombinator. I feel like I need to do this once I feel more confident about my developer skills.