AUTO TO 4 SPD

When I built my '65 Dart drag car, it was a tight fit for a 904. I heavily modified the trans hump to get the trans to fit easily and give me room for repairs and strapping on the trans blanket. Looking at another that has no trans. Thinking about a 4 spd. Can't see how a 10 1/2 clutch and scattershield is going to fit in the space alloted. Thinking about a hydraulic clutch to so the linkage issues should be greatly reduced. This Dart will start out as a street/shakedown car and wind up doing a fair bit of road racing. Any help?