Classifieds website using Joomla/Wordpress template

Hi, I want to create a classified website and have looked at Wordpress and Joomla. The below templates are options i would like. I am purchasing either Template Plaza [login to view URL] or classipress: [login to view URL] I will purchase these and just need someone to help me customise with graphics i will provide content and what i want. I want someone to basically help me get this started. I need someone to upload to a host for me, and then from there take my instructions to customise to my tailored needs. This involves new graphics and changing layou etc to match what i need. I will need logo and graphic creation in places as well as editing where boxes are. I will need SEO and search engine listings as well as help installing ad space etc. I will then probably need over a period of a month or so tweeks to be made or bugs fixed etc Thanks