How much could I make from this?

So recently I started reselling fiverr gigs on ebay and making a decent amount of money. It was for 50,000 youtube views. Then yesterday I received an email from a guy interested in doing some wholesale business together, said he's a small record producer who works with several indie artists.. We are speaking later this weekend, and I've got some basic ideas on how much I should charge depending on how much he needs. How should I deal with this? How much should I charge? Any ideas on how to monetize this further? I'm not asking step by step how to do it but I would just like some feedback.. Thanks Guys!

this is better suited in the IM sections and not ebay.