bathroom/kitchen/laundry situation? Remodel?

[Will Gates]

Hey BP! My wife and I are looking at a possible duplex (ideally to househack the smaller unit). This is a rough sketch of the layout, not accurate to scale but pretty close... 

The bottom unit (in the sketch) has a weird layout for the kitchen and laundry. Currently only has access to bathroom via the bedroom. There's a crawl space underneath the house so it may be possible to add a second bathroom in the Dining room area of the bottom unit of the sketch. Would it be wise to try to add a small bathroom in the dining room area? Also.. what about the long, narrow kitchen... the stove/oven is currently on the wall next to the bathroom.... any thoughts on how we could go about making the kitchen a little better?

We're just looking for any ideas or thoughts before we move forward with an offer, etc., so we can get a good idea of a game plan if we decided to proceed.

Thanks!