I find a standard zoom pretty indispensable, but not everybody does.
You have the 40mm pancake, so adding an 85 and 70-200 would be a nice combination - but limits you to 40mm at the wide end. I frequently use my 24-105mm at 24-35mm for landscapes, so personally, would not be content with this set, but it may work perfectly well for you.
Since your budget is limited, I suggest a 24-105mm which is an excellent value and a very good general purpose lens. Your 40mm gives you some low light capability and if you can afford a 70-200 f/4 as well, you would be good to go.