One additional one to throw out is Craigslist, it still gets a lot of traction for room rentals and can give you more data points. 

It is not a cheap wireless kit you get at Sams/Costco.

However a lot of the more experienced investors have told me they don’t go by those numbers...Hopefully one of them will chime in, but thought I’d throw those thoughts your way.

Don't go cheap! 

Or I am here as a buyer (or representing a buyer) and so you know before we start discussing your house and motivations, you have to know that I plan on getting this property as cheap as I can for me (or my client) and making as much of a profit as I can. 

Asking price is just a number people throw out there in the hopes that someone on the market will take.

$150 is cheap.

He wants to throw money and I’ll do all the work.

Can get sod for nothing at Lowe's and go to Facebook find someone to go get it and lay it down like a handyman and your out of their pretty cheap.

In practice, I wouldn't sweat this, people with multiple mortgages getting paid on time typically have FICOs in the high 700s low 800s no matter how many inquiries you throw at it.