As I understand it, if you were to buy a flywheel from the likes of Retroford and fit a pinto clutch then the standard release bearing would work just fine

You could buy an Escort flywheel and have it re-drilled or use the fwd clutch and play with the release bearing or even buy a cvh flywheel and use a trigger wheel but I would recommend buying an aftermarket flywheel designed for the job and fit the pinto clutch with standard release bearing almost guaranteed to work and no hassle