I’ve not bred bp’s, but I have bred Colombian redtail boas, Cuban boas, and corn snakes. I bred each of those in their enclosures, putting the males in the females’ cage. Once I felt each pair was done, the males were placed back in their own cage.
In hindsight it would have been easier to set up the offspring in tubs, but I kept each species in a communal cage and fed in tubs....I know, I kniw, very old school.