Love a rear bench on a boat!
Up north we're usually fishing, not lazing around in the sunshine.
Couple of things, an A-frame with a wider stance (one that slightly overhangs the sponsons) can look better, but practically, what's it for? If you're not towing with it, and it's just for navigation lights and VHF antenna, you could opt for something different, as the integrity of the anchor points is crucial, so potentially bolts to the inside of the transom and has one set of legs in their current position. You're pushed for space anyway with the deck drain-well and witches hat for cables.
One thing to consider is if you move it, as you need access to insert a stainless plate to spread the load (you have a two witches hats for that). Where are the stringers under the deck, etc.
I like the idea of an integral seat mentioned earlier and how that could look.
Some interesting pictures here:
https://www.mrstainless.co.uk/portfolio-items/a-frames/