I would add overhead work. Probably seated overhead press if you can't stand.
You can find a high frequency bench program and add in overhead work or do something like 5/3/1 for bench and press. For 5/3/1 you can keep hitting the gym when you feel recovered instead of each of those lifts once per week. An example could be:
Monday: Bench 5/3/1, Press 5x10, BB Rows 50 reps, Leg Raises 50 reps
Wednesday: Press 5/3/1, Bench 5x10, Pullups 50 reps, Seated Good Mornings 50 reps
Friday: Bench 5/3/1, Press 5x10, DB Rows 50 reps, Leg Raises 50 Reps
Monday: Press 5/3/1, Bench 5x10, Chinups 50 reps, Seated Good Mornings 50 reps
Or you can do bench and press once per week and add in a day or two of accessory work to build the shoulders, chest, triceps and back. That would probably be better if the above is too taxing. If standing is a problem, you can do seated overhead press, wide grip cable rows, close grip cable rows, lat pulldowns, hyperextension machine, or anything similar.