Have you looked into a tool like Gorilla Stack - https://www.gorillastack.com/?
(Note: I have no investment in the company)
(Note: I have no investment in the company)
Without wishing to be too promotional, you can set a trigger to shut off EC2 when a cost threshold is reached. You can currently automate shut off of RDS but not yet from a cost threshold (that will be available shortly).
TLDR: we can do a lot of what you ask but not all of it.
Feel free to reach out if you'd like more info.