Hi rapidred,
I can't help you with a boat, however, as It was suggested in an earlier post the benefit of electric start and power tilt would definately be an asset to you.
I suffer from cerebral palsy and recently sold my 3.7m with a 15Hp which had electric start and power tilt fitted especially for me by a outboard mechanic friend of mine.
I have now upgraded to a New 4.1m tinny and 25HP 4 stroke with E/S and PTT.
Back to your original Question, if you were to get a licence, would be able to look at a few around this size with these features, for close to your $6000 mark.
Hope this helps.
Cheers
Scott