Yes. Spaenaur in Kitchener, ON stocks BA, BSW and BSF fasteners, taps and dies, though not with the original BEES or AUTO-R head markings.
Spaenaur pricing seems to be based on inventory levels rather than bolt length. I bought 1” and 1-1/4” BSF 1/4” bolts and the shorter bolts were priced 50% higher than the longer bolts. They were $2-$3 each.
If you’re into strict originality for show you’ll need to replicate the markings using a technique like this one
The pointed ends on the bolts facilitate application where shims are used, likely for the doors.