A place like http://www.grow-a-room.com/ would have prints im sure... But I would design it tailored to your space. Not just the grow space, you also need FULL plans, to run the proper amount of power to everything, safely. A background in drafting, and electric would behoove you.
Im going to customize it but a general layout would be nice.
I already have a good amount of plants right now and have everything set up but in a tent. I want to make a room inside a room & transfer everything. Thanks for the site, Ill take a look.