WHMCS and PHP expert

Dear all, I have a webhosting company where I need an expert in WHMCS and GET functions. I have already installed the WHMCS but would need someone to walk me thru the options inside and how to best utilize the WHMCS for my job. I would like to integrate [login to view URL] as they are my domain service provider and they have their own APIs, so I would like to use those APIs to integrate their domain services on my website. The APIs link is [login to view URL] .. I will simply need to make my clients search and reserve the domains if available and pay via my merchant account (that would need to be setup on WHMCS as well) .. I have a good knowledge about CMS generally but I would rather have one to walk me thru the options thoroughly other than self-study and explore .. so your job would be pretty easy :) .. Good luck for all