you could get a searider 5.4 within that budget, a little smaller than you have suggested but give one a sea trial and you wont be disappointed.
Nice yam 90 on the back you will be laughing!
The problem with seariders is they don't have the best seating space. As long as you are not taking out for than 4 regularly you should be fine as they can just sit on the tubes.
You do occasionally see the sr6 meters coming up but they are very scarce and for that reason usually go for the money.
I suppose one option could be to leave the deck as open as possible with only the very smallest 1 man console for the driver then everyone else can sit in the boat or on the tubes if you covered the deck with a bit of shock mitigation (e.g. those foam kids puzzle piece floors you can buy)