Ive just ordered my New Ribcraft 5.85 from here in the UK - They are on 2 weeks holiday at the moment so probably wont start building for another week yet - we will probably be getting our boats about the same time.
I went for a slightly different layout than you. I didnt really like the idea of driving the boat from an off centre position (being a heavy bloke) so i opted for the single driver jocky then 2 X 2 man jockeys behind that.
Its alot cheaper than going for the double side by side console and luckily what i wanted anyway...
here is a pic of a 5.3 with the same layout as i have chosen for mine so presumable there will be a bit more space either behind or in front or both.