Can I replace NAV MFD with a non-NAV MFD

Helping friend with 2008 Prius, that has nav, jbl and backup. I have a 2015 Prius.

The touchscreen is wacky responsive. In Nav mode the cursor does move around when screen is touched, but only down. I have looked thru all the forums and message boards trying to re-calibrate, but nothing works. I can get to the basic system menu, but not to the screen with calibration, and if I could...I probably couldnt get the button to work.

So, car is at 299497...CM will stop counting soon. The CM wasn't working but I did one trick and it's on for now. She would like basic functions to work on MFD.

I've read I'm supposed to take the MFD completely out of car to get part number to match, but Nav MFD is much more expensive than non-Nav. Can I put just put in a non-Nav???

thanks
Drew