If you’re just going to have them in a greenhouse then you’ll probably be hand-pollinating and flowering type won’t matter as much as long as you brush the flowers a couple times each day to collect pollen and pollinate. Also, flowering times vary a lot based on temperature, so it’s possible Brogdon won’t behave like Type B in your greenhouse.
I’d offer scions, but the only cultivar that I have with any extra branches at the moment is Brazos Belle, also Type B.
I don’t know about flowering type for Marta’s varieties, though.