Hi David. As Jack suggested, a 1974 Duraspark II ignition distributor that suits the T-code 200 and L-code 250 ci Mavericks would suit a DS2 body.
Standard Motor Distributor cap is FD124.
As for the rotor, the right one is possibly the Motorcraft DR87B, although there are FD118, FD110, and FD118T and FD110T parts as well.
If you don't want to use the common US Duraspark gear, PM me as I still have a stock 123 hp cross flow distributor.
Suits the stock 76-80 cross flow.
Std Motorcraft 78 DA-12100-AB. Bosch PN 9 280 062 651, stamped 931. Rotor is 9 231 064 312.
I can supply the distributor and rotor for free, but it has no cap. Caps aren't that expensive. Eveything from 1971 to 1980 used a similar distributor cap.