This is going to be interesting. A friend of my is an interior designer and she was telling me that you should not look at how the space currently looks but at how it will look once you finish :) So I like your attitude with seeing the potential.
I am not sure if I understood the whole post though. What are you planning to do with the house once you finish? Are you going to sell it (You mentioned potential buyers)? Or are you going to use it for business (You mentioned that the kitchen will bring you the highest ROI)? Just curious :)
Good luck with the project Jen! It looks like you had some exciting times ahead :)