This can be done be anyone experienced in C# in a week, 4 hours a day or so of work time each day.
Ubot is very easy to use and can be used for the most complicated parts (web browsing automation).
Willing to pay more to have it delivered urgently. Don't worry, won't be trying to underpay you. Money is good.
Payment will be done by milestones, where the source code should be delivered, in any cryptocurrency of your choice (bitcoin, ethereum, monero).