Classipress wordpress work

I currently have the Classipress theme on my wordpress site. The thing is when you want to buy an item you fill out the forum and you request is sent via email to the seller. I would like to have a on site messageing system. I got Cartpauj PM plugin, i just need someone that can recode the widget that sends emails to a widget that sends to Cartpauj PM system. Please let me know if you feel like you can do this and how much it would cost. I am also open to other suggestions to get my goal accomplished.
If I like your work I will have more jobs for you.