The question asked displays one of the many issues with frum jews today.
However, i do respect the asker for thinking about it before just doing it.
Why are frum people always looking for a way to make a quick buck???
Put it this way, the way I learned in Bais Yaakov— would a Gadol HaDor do it? I know, I know you’re no gadol, but they’re supposedly our role models…
I’d say to STAY FAR AWAY from things like this. It’s not yashrus.