Where do I get the paperwork (deed of trust and other documents) for the seller to sign?

Its nonrefundable and the document says that multiple times in big letters. 

Zillow can be a helpful guide in some ways but the actual documents recorded by the Clerk of Courts are your scripture in RE. 

I just purchased a foreclosure on the steps of the Lee County courthouse, but haven't yet received any documentation on it.  

I had questions about how he could lend so much without any collateral and that my Attorney was reviewing the loan document.

Every state is different.In the states I am licensed in, I would use the Realtor Association Approved form without a problem. nevertheless we alway recommend using a Real Estate Attorney for all Real Estate transactions (even if Realtors are involved) specially if neither seller nor buyer has legal representation. there are Flat Fee attorneys that will draw-up documents for you for a nominal set fee.

I am thinking of a couple of options1. just paying the amount (~20$/month) for using the space heater if I need to in any particular month2. sending them legal documents (http://legaldocspro.net/blog/warranty-of-habitability-in-california/, http://www.hcd.ca.gov/codes/state-housing-law/hcc/hcc_ap2.pdf, )3. moving out, and getting another placeMoving out is going to be a pain, so I am thinking of either 1 or 2.

By sort of over documenting the offer and having the door opened to use your rights of redemption (which you were granted when you bought at auction) there is a chance this may work.  

Definitely keep it as digital as possible and use a cloud storage for documents.

I have never done it before, but I am very good with document processing, marketing, and learning new things.