So if your idea is rejected by the Apple App Store then there's no payment?
That payment clause alone will be a deal breaker for any decent developer.
If you take that restriction out you MIGHT get someone to help, even with the restrictive budget.
You're essentially asking the developer to bear the risk of uncertainty from all of the app stores, and making the entire project payment potentially forfeit based on any one marketplace's arbitrary action. There may be developers that are willing to take that risk, but I suspect its going to narrow the pool that are willing to even consider your project at any given price point.
> That's just stated that way so that I don't get a dev who makes a low quality app that can't get approved to the app store & so I don't get stranded paying for an app I can't sell.
Sure, its reasonable you'd want to avoid that, but on the other side, developers are going to want to avoid writing an app that they can't get paid for due to forces beyond their control.