Hello Doug, Here is the Arizona Association of Realtors Forms page.
https://www.aaronline.com/manage-risk/sample-forms/residenti...
You will probably need to use the Residential Resale Contract.
For the Buyer as an example use "Doug Teasdale and/or assigns" This allows you to assign the contract to your wholesale buyer. You could also use "Doug's LLC and/or assigns" where Doug's LLC is your hypothetical company.
As for the assignment contract, you can get one from an attorney for probably less than $1,000, you can also make a friend at a title company, they probably have a template they could give you.
If you are looking at Property Values, use zillow.com, that is what we use to fact check properties values. Zillow's Zestimate is a good litmus test for the property value. If you want to get involved with a great training program, try Lifestyles Unlimited, they have over 55,000 members nationwide.
In the future, either get your Real Estate License so you have access to the MLS, or make friends with a realtor so they can get you comps to get an ARV.
For purchase price, use this formula, (Arv * .70%)- Rehab = Purchase Price