Reality TV Show Pilot - Artist Fee

I am an attorney who does not deal with a lot of television contracts for artists. I have a new client who has been approached by a production company to film a presentation for a reality tv show. I'm not sure of the market rate for these things and want to get your opinion.

How much is reasonable for just filming the pilot?
If it gets picked up by the network, what is a reasonable per episode fee?
If it gets picked up for a second season, what percentage is a reasonable increase?

Thanks,

Nick