I've never built a FB landing page but have created landing pages for websites so it shouldn't be too different. I just looked it up now and there's tutorials online of how to build one. I can always outsource it but that's a bit of gamble as you want to make sure you give the task to someone competent enough so you don't get an angry phone call from you client.
I need some assistance closing this deal, or should I even close it? He'll work with someone else if he's uncertain about my abilities, who will probably charge him a lot more too. I really need this money because I'm going through a bit of a rough patch right now.