Without knowing the boat specifically, I can only generically comment:
My buddy has a 22' Boston Whaler [center console]. We keep the tanks on the floor in the front of the boat; laying down. Since the tendancy is for things to slide backwards, we have the tanks lying up against the bench in front of the console, and store our weightbelts on the floor in front of the tanks [to keep them from pitching forward too much].
We're planning on installing straps so that we can strap the tanks instead of using weight belts to keep them from moving; but we've not gotten that far.
When gearing up, we usually have one person gearing up on the bow, while one person gears up back by the stern].
We have a removable ladder that goes over the side right about where the console is. On exit; we both remove our weights and either hand them up to the surface support, or heave 'em over the side onto the deck. We then both remove our BCs. One person holds both BCs while the other person removes his fins, tosses 'em aboard and climbs aboard. The diver now on the boat can pull up the rigs while the other diver is in the water, making sure they don't float away; sans all gear except fins.
Once the BCs are aboard, the remaining diver removes his fins and climbs aboard.