Seller financing deal specifics

[Brandon Montgomery]

I'm 3/4 of the way through my first rehab and the house RIGHT NEXT DOOR is possibly being sold. I've already been in contact with the owner several times (his aunt left him the house and needs a decent amount of work that he's not willing to do). We paid 96k for the house next to him with an ARV of 170k. The house is in extremely similar condition to ours (25-30k rehab) when we started but has a storage building, covered back porch, and little more yard space. How could I structure a deal to entice him to seller finance it to me? He had mentioned wanting to make it a rental before he decided to sell so I know he wants the cash flow but what could a deal look like specifically? For example a 110k purchase price. Thanks for any help!