I want to use the odoo reports to print a contract in a report style , I know how to do basic report however the contract I would like to print has a lot of text lets say three pages worths , with many headers bullet points etc.

At first I thought I could just copy whole text and put it in through the html editor  and structure it to my liking however this wont works as , i need variables of data that i need to call to display within the text  . 

Is there way i could go about this  or do i have to manually structure it in a xml file ?