Using transaction bundles on compromised wallet


In order to overturn the sweeping bot installed on my compromised wallet, how to build a bundle of transactions which would interact with contracts, sum up value, then extract all remaining value to and from that compromised wallet in a single transaction sent to a relay chain ?

Additionally, how to simulate that execution after setting efficient gas resolution ?
What would be the most simple way to create that bundle ? ; eventually using metamask and sending transaction sequentially to a uuid on a relay chain before validating the execution on chain.

Problem : The complexity (flashbots site) and rareness of simple baby steps into the matter.
Solution : asking a sympathetic community for help.

Thank you.