Yes the rotor arm is different in height for the points and electronic dissys. I suggest you grind a few mm off the bottom of the Bosch rotor, then it should fit.
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Scorcher/Performance Ignitions build quality is excellent.
They used to build our Formula Ford dizzy's, Nissan/Bosch body machined to fit the Kent block with Bosch/Porsche points, curve to my specs.
Spark control was excellent.
The dizzy they built for my 351C was a Ford body with Holden/Bosch cap/rotor/coil and curve to my specs for LPG.
Build quality was excellent.