Brownells should have plenty of options from Lyman, Williams, and Marbles, maybe others. A call to Williams would probably get someone who knows what height you need to go with a peep, especially if it’s one of their’s.
When I had mine I used a Williams peep that mounted in the scope base holes and required a higher front. Not being a fan of bead fronts I made a Sourdough front the right height. Of course that requires a mill.
