Are you financing or paying up front? If you are financing and shopping monthly payments watch the terms and interest based on the year of the boat.
10 year 30k @ 11% (older boat) = $413 month
15 year 45K @ 7.25% (newer) = $410 month
All boats listed above are nice, but if I was to buy a 25-28 foot single It would have to be a 26 Sonic
It has the most head room in that size, and has a full head with shower. you should be able to find these for 42-50k.