Hi Festus and welcome to the Madhouse
Maxi bits must be much rarer than Commer stuff to source, it might take you a while so plenty of time to look for a Commer
It may be that the picture file is too big, try resizing it to 640 x 480, that seems to be about right for adding pics. If you set your camera/phone to low resolution you wont have the same problem in future.
The wonders of Facebook. We all have odd names on this forum, but I figured that you must be Chris Morris with the orange Maxi on Facebook, so I copied it from your post and put it on here. Yes, I am Chris Rand that you were talking to on FB!
Great Maxi festus, it's funny I saw a Maxi the other day in Droitwich Spa. My mates mum used to have one when I was younger. My names not odd its Andrew