Make a random number generator, and pick a comfortable range of [20, 200]
per month, and get the resulting random number. Say, you got $97.
Ask the advertiser if they could accept $97/month? If not, negotiate and
iterate the process.
Don't think pay per click is the way for this, since it involves tracking of
the clicks etc. Do you have the software to do that?
Monthly payment is the easiest to start with.
Could I get the baozi?