@Julio Granda, Thank you, that's exactly the type of stuff I was looking for.

What type should you do?

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Now, one of those things, depending on your personal worth is you might want to form either some type of corporation or an LLC to form that will protect you personally and put you in a tax advantage.  

Consider forming some type of corporation or a LLC to protect yourself personally.  

Graphics is kind of a hobby for me, so I tend to put a little more time into these types of things than I probably should.

I started typing out a formula that I thought would work but I had to delete it because I couldn't figure it out.

So basically he was selling skeleton houses with pre-determined prices for different type of finishes.

The buy experience was easy, and very lucky - right place right time type of thing. 

@Michael Leung update: went to the door had a No Soliciting Sign on his door and next to it typed up "Whatever it is you're selling I'm F****** NOT INTERESTED"..... knocked anyway, no answer.