I don't think you'll make much with Post2Host or offering free hosting. I've been there and got the t-shirt so to speak. That said, it's good to learn as much as you can about anything, and everything related to web hosting to know what does and doesn't work.
Offering free hosting or P2H is useful for learning and due to the service being offered (nearly free) you're less likely for someone to try to sue you. For example, if something should go wrong, e.g., you lose all their data due to a hardware issue and have no backups, but you have no terms of service to cover you. But if you know enough to go straight into offering paid hosting only (I'm not sure what you know) then I'd go that route and concentrate all your effort into that, and with a lot of time and patience you could do well.
Offering P2H or free hosting doesn't make much profit at all, and all it does is use up a lot of admin time for you and those helping you run the business. I hope none of my opinions has offended you. You do whatever you think is best for you. I'm just going by experience that offering free services to try to get customers to switch to paid doesn't work as well as you think it might. I would suggest getting a decent Reseller account (if you haven't already) and offer paid hosting services, do design for family & friends and local businesses by using a site builder like SiteMush or WordPress or something like that, and it'll take off in no time at all. Offering P2H and free hosting may give the wrong impression.
Regarding the work, there is no pay. You may as well just ask someone with good knowledge of hosting to partner up with you and to go 50/50 on all costs to get things going.
Hope that helps.
