John Dollus

Sorry, no template but you would most likely want to have one governing contract outlining the general terms such as pricing, process, payment details etc. and then have each job as a separate traceable job number under the governing contract so you can invoice and track as you push through them and minimize the admin paperwork along the way.
That way, the people in charge have ultimate responsibility for you getting paid and coordinators can handle the barebones scope docs along the way.