Contract for FSBO - Attorney, Agent, or DIY?

[Robert Hursey]

I am putting in an offer on a for sale by owner single family home and was wondering what the best way to go about putting together a contract would be. Depending on who I talk to I have been advised to use a selling agent, an attorney, or just putting one together myself using information from the Internet. I know I will need contingencies and it will need to be worded properly to include everything that we would need in the contract. I am looking for advice from experienced buyers. The property is located in southern Illinois.