The LCD is really a bargain.

But in any case you need a really fast controller to update the screen. Also you may need to read data from the SD card and then update the LCD. So more time needed.

Microchip is supporting such LCDs but I think on the PIC32 series. Wonder why now?

And a last thing. Using 8 bit or even better 16 bit interface is a must in this case. SPI? I would not think about it.

Ioannis