Well since no one makes them I decided to give it a try and make some steel half door for my M38. Turned out to be easier than I thought and cost of materials hasn�t hit $30 Canadian yet.
Used 3/4� square tube about 7 feet and 20� of piano hinge.
Tools needed, welder, grinder with cut off disk and hard and soft grinding disks and a few hand tools.
I am about 3/4 finished just need to skin the doors and fab up a latch, on the fence about how to latch but I have a few ideas.
Basically use some cardboard and make a template of the door opening, using the template as a guide make a basic frame out of tubing, I chose to use a piano hinge so I will have a two piece door, but you could use a similar hinge that the soft doors of the after market tiger tops use.
Bending the tube to match the angle of the tub is fairly simple, just notch the tubing and bend, then weld the notch closed once you have the angle right.
Like I said I still need to skin the doors, that�s next weeks project.