Hi Tom: I have the spring loaded keepers as shown at Camping World and mentioned by several. There are two lengths of these things, at least at Eastern Marine. I remember that there's about a dollar difference in price. Get the longer of the two to afford the longest throw such that the lower door edge is as high as you can get it. If there's no nailer at side of opening you'll have to add one (or two if you do both sides). As you know, the Pullman style
Burro roof means that, for most people of average height, the hinge point is at about eye level making the door open up and protrude at about forehead level. Add the sharp corners and this is a recipe for contusions. If you mount the keepers such that the door opens slightly above horizontal, there's less chance of damage to your dome.
Alternatively, you could use the magnet or catch to ceiling method mentioned above. You could also radius the corners of the doors to get rid of the corner but the best idea is to open upward and get the opened position as high as possible. With an applied hardwood face frame, sliding doors are also a possibility over the galley cabinet. The look" wouldn't match other locker or cabinet openings. The best latches imo are the old spear strike or C-clip with double roller, which are maybe a dollar apiece at Big Box hdware aisles. Solves the problem of bungees but you can whack your noggin on these also. Reducing the overlap of door over opening would also be advantageous but not necessary on the upper hinge side as, again, they need to be as high as possible and rehinging lower would create another cosmetic hole filling job at about eight locations on the inner shell.
jack