I know some of the newer 28s with the flushdeck and extended pilothouse have bench seating built in, but I'm not in the market for newer 28

I would like to modify our seating arrangement so four people can be protected from the elements underway. (My wife and I and two kids)
I have attached a diagram of what I am thinking of doing. (Port side) Removing the port helm seat would probably be a mandatory to get a whole "bench" arrangement.
I will be meeting with a custom fabricator this winter and hope to be done with this project before next spring.
Goal would be to make something that looks great, not so pricey, but most importantly be able to revert back to a two helm seat arrangement if necessary.
I would love to hear any suggestions of how you might think would be the best design/way of going about it.
If anyone has done this, I would love to hear how you did it and see pictures if possible.

Thanks in advance!
Gery