Hi
we should be able to help you with this task, but not using autoit, but a chrome extension that can automate the process and and an external paid service for the captchas.
we have done the captcha part before and automated processes with extensions, in order to provide an accurate quote we need a video of the process.
We specialize on co-located teams in South America with constant training and we aim for indefinite long term business relationships, we work by providing full time programmers, but this is project is small enough that we can quote it.
Sincerely
Pablo V
Atlanticsoft