the fee will be a % that i and the customers decide of. for example, if you'd like to ship a USB miner and it would make let's just say 10 Dollar to make it easy and the % we agreed upon is 10%, then that 1 Dollar that the miner minnes would go to us.
you can choose whatever pool you want since you have kontroll over the miner with various programs

that looks like a real flexible fee plan worth looking ...