Create 2 forms with WP GravityForms plugin + integrate google checkout

I need 2 forms made in Gravity Forms plugin, which is already installed on the wordpress site. There are about 30 fields. There is a third form which is already finished. It, and one of the other new forms need to have google checkout integration. This is a very simple task and I need to have it completed in a few hours, tops. If you have experience with wordpress and gravity forms plugin, this will be a breeze.