pi4 fits in the stock case without mods. https://imgur.com/a/P6QpGTv At least the one crew dog sends out. You have full access to the usb type c slot with the stock cutout. You would only have to mod the case if you wanted to use the micro hdmi. Its basically a plug and play swap nothing needed to do besides switching over the usb modules and the sd card. Does anyone use the micro hdmi for stratux? I doubt there's any benefit besides the usb type c though. I picked up a used 8gb one on amazon for 48 bucks so it was an easy choice for me. I was going to use a power management hat https://www.amazon.com/gp/product/B07R45W1LN/ref=ox_sc_saved_title_10?smid=A3OWUO30LQJ1NE&psc=1 to change over to type c but i wanted to keep it streamlined and slim when i modify it for a custom case.