OK! My conversion is complete, and I have fired with T7 powder.
Just got some BH209, will see how it holds up to the hype.
Thoughts on the conversion:
The flange of the primer slides into the end of the bolt. Closing the bolt "swages" the primer into the breech plug.
Opening the bolt extracts the primer, and it just rolls out if you tip it, or it easily lifts out with fingers.