No worries, PCBs should be here today if DHL get their act together. I have white 0.96" OLEDs on the way, could possibly try with a yellow-blue I have left.
The thing is, you don't have an ordinary button layout, so maybe traditional SCS LCD functions don't make sense anyway. But as far as the display goes, a 2*20 CLCD is 100 pixels across with a gap of ~1 pixel in between characters. So the horizontal resolution is comparable.
I chose the 6 button "hex" layout just to try something different. My thought was that there's enough space to provide two menu rows of 3 items each. Have to see though, my guess is @Hawkeye will do most of the hard work with the Programma builds ;-).
This gives an idea of how the text fits, approximately 20 characters: