You might want to try bird-dogging for awhile until you get more familiar with REI. You can also review the TREC contract class that is available from this site/club to get more familiar with the TREC contract. Keep in mind that the TREC contract is a standardized form propagated by the Texas Real Estate Commission, so it's pretty comprehensive and well-vetted, i.e. it is the happy medium. Using a one-page contract would probably just open up you and your seller to unforeseen problems.