Seller Financing suggestions? Let me know what you think!

[William Salas]

Hi! I have a deal on the table where I am approaching the seller with terms for seller financing. She is potentially into it; she just needs me to start the conversation. Any input from others would be appreciated. Let me know what you think, thanks!

She wants $315k for the house. It's a 3/2 single family that is currently rented for $1,550 a month.

The house needs work, it's livable but hasn't been updated in awhile. 

Fixed up, the house could rent for $2,500 to 3,000k a month.

I'm thinking of offering her $315 over 30 years at 4.25% which would equal what she is currently receiving per month.

She is 76, so maybe giving her some type of Call in 10 years where she has the option (or not) of calling the note due (this is more for her peace of mind than anything since she's older).

Ideally I do this do with little to no money down.  

How would you structure this?