ETH Sweeper Script

I need a script to sweep ETH (and select ERC20 tokens) to an address. I want to be able to input: - A list of private keys - A list of ERC20 token contracts to monitor - USD value to monitor for When I start the script, I want to be able to monitor all addresses (derived from the private key) for ETH and ERC20 tokens with an individual value above a certain threshold. Once the script detects the presence of such tokens (via eth_getBalance or by some other means), it will send them to an address (must be done quickly), leaving nothing in the account.