ASP 3.0 and ASP.Net Javascript CSS Work

We have some ongoing work in ASP3.0 + ASP.Net + Javascript + CSS. The budgets are less but once we are satisfied, we have ongoing work. We would like to have fixed bids on each requirement and try with few developers. We want to try with few developers before we can fix to one. The timelines are critical. We watch at the time you commit and the time you deliver and quality. Thanks, Lakshmi Gupta.