[intakexhaust]

Size and current layout needs to be looked at before discussing. But even before that, you mentioned resale. When will that take place... a year from now or ten? Trends come and go so keep that in mind.

You might keep this thought too - what you or your wife likes, the next might not and they have their own thoughts or standards. So some prefer a kitchen as it is during purchase and they'll do themselves. Any money you put into it may be an entire loss. I've seen this countless times on BRAND NEW homes - New $100k kitchens taken out and replaced!

But, since you asked and what is shown, I would tear it all out, including the basin. Maybe keep the range. Donate the cabinets or move to the garage (if appropriate), sell the fridge and replace with matching stainless look. With using the budget in mind:

lay a better quality engineered wood laminate floor.
Select a big box retailer group of cabinets having concealed hinges.
Formica or solid surface countertop.
Dual sink and new faucet.
Change the lighting / install or upgrade electrical if needed (disposal, GFCI, etc.?)

For color and tone. No loud looks but do have color for some 'pop'. There's some super looking wall coverings as well that can accent a specific wall / or even used as a backsplash. For ideas look thru magazines, kitchen supplier pamphlets etc.. Much depends on the type of lighting (day and evening). How much natural light? Is another window available... consider a larger one?