So I've decided on using the Mode 3 (2nd) of the pinouts for RGB565 as seen here https://www.raspberrypi.org/documentation/hardware/raspberrypi/dpi/README.md

After a while I've figured out where to solder what cable and also managed to do the device tree overlay for the PI Zero W.

pi@retropie:~ $ sudo raspi-gpio get  
BANK0 (GPIO 0 to 27):  
  GPIO 00: level=1 fsel=6 alt=2 func=PCLK  
  GPIO 01: level=1 fsel=6 alt=2 func=DE  
  GPIO 02: level=1 fsel=6 alt=2 func=LCD_VSYNC  
  GPIO 03: level=1 fsel=6 alt=2 func=LCD_HSYNC  
  GPIO 04: level=0 fsel=6 alt=2 func=DPI_D0  
  GPIO 05: level=0 fsel=6 alt=2 func=DPI_D1  
  GPIO 06: level=0 fsel=6 alt=2 func=DPI_D2  
  GPIO 07: level=0 fsel=6 alt=2 func=DPI_D3  
  GPIO 08: level=0 fsel=6 alt=2 func=DPI_D4  
  GPIO 09: level=0 fsel=0 alt=  func=INPUT  
  GPIO 10: level=0 fsel=0 alt=  func=INPUT  
  GPIO 11: level=0 fsel=0 alt=  func=INPUT  
  GPIO 12: level=0 fsel=6 alt=2 func=DPI_D8  
  GPIO 13: level=0 fsel=6 alt=2 func=DPI_D9  
  GPIO 14: level=0 fsel=6 alt=2 func=DPI_D10  
  GPIO 15: level=0 fsel=6 alt=2 func=DPI_D11  
  GPIO 16: level=0 fsel=6 alt=2 func=DPI_D12  
  GPIO 17: level=0 fsel=6 alt=2 func=DPI_D13  
  GPIO 18: level=0 fsel=2 alt=5 func=PWM0  
  GPIO 19: level=1 fsel=2 alt=5 func=PWM1  
  GPIO 20: level=0 fsel=6 alt=2 func=DPI_D16  
  GPIO 21: level=0 fsel=6 alt=2 func=DPI_D17  
  GPIO 22: level=0 fsel=6 alt=2 func=DPI_D18  
  GPIO 23: level=0 fsel=6 alt=2 func=DPI_D19  
  GPIO 24: level=0 fsel=6 alt=2 func=DPI_D20  
  GPIO 25: level=0 fsel=0 alt=  func=INPUT  
  GPIO 26: level=0 fsel=0 alt=  func=INPUT  
  GPIO 27: level=0 fsel=0 alt=  func=INPUT  

And here is my complete stolen together config.txt file. I've changed the frequency to 9.6 MHz as baldengineer suggested here: https://www.element14.com/community/people/baldengineer/blog/2018/03/13/screen-success

dtparam=i2c_arm=off  
#dtparam=i2s=on  
dtparam=spi=off  
  
dtparam=audio=on  
gpu_mem_256=128  
gpu_mem_512=256  
gpu_mem_1024=256  
overscan_scale=1  
  
# usb network  
#dtoverlay=dwc2  
  
# enable the DPI display  
enable_dpi_lcd=1  
display_default_lcd=1  
  
# Set screen size and any overscan required  
  
overscan_left=0  
overscan_right=0  
overscan_top=0  
overscan_bottom=0  
framebuffer_width=480  
framebuffer_height=272  
  
# set up the size to 480x272  
dpi_group=2  
dpi_mode=87  
  
# set up the hsync/vsync/clock polarity and format  
dpi_output_format=0x7F013  
  
# set up the size to 480x272  
hdmi_timings=480 0 40 48 88 272 0 13 3 32 0 0 0 60 0 9600000 3