I've done a couple of different things. I do not like the military disty with sealed wires. Fine for it's intended purpose but lacking in serviceability and performance (IMHO). I initially modified a military distributor for the pertronix but later installed it into my brother's 602. I know that I owe someone pics for this but I have been drowning in a kitchen remodel and haven't had time to get them.
Stock Reo civilian distributors are out there; they're not real common but I've found a few locally. They use readily available caps, points, etc and can use the Pertronix 1167.
One of the great things about DelcoRemy is that so many things interchange. I made my own using a distributor housing form an Allis Chalmers WD45, the shaft and advance from an early civilian 302 GMC, and the distributor drive purchased from Memphis. Worked fine.
The stock distributor for my 6-200 is a holley. It can be modified for an IHC pertronix. It has the advantage of a tach drive which allows the use of the military tachometer. Caps are not readily available but it can be easily modified for a ford six cap.
There are other, later, Reo/ White distributors with screw down cap out there but I don't have any of them. I suspect that parts may be quite hard to find.
I also modified a mini HEI distributor from a 2.8L GM V6. Works fine and is cheap. Not readily usable on 24V and I haven't had it recurved so it serves to fire the spare engines.