I noted you are looking for a boat to suit your disability and also something sporty.
I am a wheelchair user due to a spinal injury and wanted to get a board that combined a number of features to suit my needs.
It had to be sporty and luxuriously appointed, space for. 6-8 people in comfort, good in all weather conditions but didn't need to be a lifeboat, lots of storage space and plenty of poke!
I had always admired the Cobra boats as they looked really smart and had a seating layout for three on the rear bench seat, two very supportive seats at the helm with plenty of handles/rails, a suicide seat and then enough sauce for 4 comfortably at the front.
I bought my first Cobra 7.5 about three years ago. A great boat with a 225 Suzuki two stroke. It served me well but was a bit thirsty! The layout and all the storage worked really well.
So with a good experience I bought a new Cobra 7.6 in 2011 with the new Yamaha 250 four stroke. The hull was redesigned and the engine is magic. Much more economical and quieter too.
I am selling it now but unfortunately it is a bit more than you want to spend however you could pick up a really nice 2008/2009 Cobra 7.55 for your budget. They are a bit scarce but you should find one through the summer.
Good luck in your search. Please drop me a line or call if you have any questions re the practical side of a Cobra rib as I think it would be hard to beat. If you look in the ad section you will see the seat layout etc.