25' Mako will get you anywhere you need to go. Nice boat, well built and made to fish.
I'd be wary of the early 90's OMC Evinrudes though....POS.
Look up the hull value of the Mako in the blue book, 'cos a 15 y/o evinrude is worthless IMO. Buy the boat for the hull and plan on repowering.
Here's a good forum for boating:
http://www.thehulltruth.com/