I used one from a diesel ram truck. The reservoir was smaller and cleared valve covers better.
Had a bit of an issue with pedal return. Needed a heavier internal spring on the pushrod but could not find one so I added an external spring to bring the pedal back and it worked like a charm.
I am using a 15/16 bore dakota/jeep master cylinder. I used a thinner clocking plate as the rams was a half inch thick. I had to create a longer pushrod between master cylinder and hydroboost.
I used the rams mounting plate but drilled new holes in the plate to adapt to my darts pattern.
