That volume should be fine imo. See how you get on with squats. For my HST I had I think 11 or 12 exercises all 3 x 5 and DOMS weren't an issue.
Might want to consider swaping pull ups for chin ups on workout B. Maybe get some dips in on workout B too?
Might want to consider swaping pull ups for chin ups on workout B. Maybe get some dips in on workout B too?