Morris Minor Owners Club

If you mean to repair the lower 6 inches or so of the door
then repair sections are available but be warned, this is not
the sort of job to attempt if you are a beginner. It is very easy to
finish up with a door which is impossible to align with the door
opening and is the type of job where the welding has to be done
in sections so that there is no heat distortion. This repair is well
covered in the book "Practical Classics onMorris Minor Restoration"
If you can obtain a copy(page 34)

hmm, well beginner i am but im not worried in the slightest about panel gaps, my car will be no show winner thats for sure, i just want a roadworthy minor until i can afford a better one really! obviously i want to get the sahpe roughly right, but the curve at the bottom will be trickey, miight be another filler speciality! can i obtain repair panels froom charles ware in bath or anywhere near to bristol?

Yes and you can Phone Charles Ware for advice,they are very
helpful.