Creating a Menu homepage and Wordpress Template

I have a small bookkeeping business and I do different things like bookkeeping, tax prep, financing of business equipment, and sales of credit card processing. I have a few different websites, but I would like it so when customers go to my main page [login to view URL] a menu system comes up that they can chose which aspect of my business they are interested in. I currently have a separate page for medical financing, credit cards, and the bookkeeping. At the same time of making this menu system I would also like to make a word press template for tax prep which has a background that looks like an IRS form 1040. my main page [login to view URL] is currently done on wordpress