Having completed some extensive repairs myself on a suicide door model, I can honestly say that I don't envy your body builder.
Mine was a nightmare as all the panels needed some form of modification to get them to line up.
Although you are lucky in having found 2 genuine sides, this in itself is a massive and complicated job to get the vehicle back together all square.
I saw your vehicle first hand before it went away and your floors, rear floors and front foot well were all either badly corroded, damaged or had already been poorly repaired. This makes it even more complicated as you wont know what is correct. On top of this he has remade many panels as they are not available.
So as much as I am sure you are growing impatient, it looks like he is doing a great job.
I can only imagine how many hours he has spent measuring and scratching his head whilst drinking gallons of tea.
Anyone who thinks this is easy, think again!
Cant wait to see this one finished for different reasons to you.
Keep the photos coming Andy. Us resto nut jobs love this kind of work.