Not a big problem, it is only a minor change to convert the pro mini in to this one (delete 6 pins, add the usb connector back in, add 2 power pins) to make one of these from the pro mini board (and we have a pro mini if someone else wants one.) Once you are used to making parts changing them is fairly easy.
Mega-pro-ch340g-ATmega2560.fzpz (30.8 KB)
Peter