Need Help Building a Funnel for Real Estate Seller Leads through Facebook

I am a real estate agent looking to get more listings. I generate about 200 buyer leads per month for pennies. I desperately need more seller leads! I want to do this through facebook. My headline will be something along the lines of "3 Things That Will Get Your Home Sold Quickly for Top Dollar!" and I'm thinking that my lead magnet will be a Free 3 part video mini series.
Video 1 - Price (I will show them the best way to accurately price their home).
Video 2 - Presentation (Will go over how their home should look, discuss repairs, improvements, landscaping, cleaning, etc...)
Video 3 - Promotion (Show them my "89 Point Marketing Plan," which they could use for themselves if they wanted to sell it on their own)

My goal for this is to give them lots of value, but to ultimately come to the conclusion that it is a lot of work to sell their house, they can't do it on their own, and to view me as the expert and use me as their real estate agent to sell their house.

Thoughts and suggestions on this would be greatly appreciated!

Also, I need help figuring out how to take them from the lead magnet to actually signing a listing agreement. What do you suggest?