If there is someway you can scrape together another 1k you can jump ahead ten years in models. It will get you into much more efficient engines newer drives etc. If you don't live in a large metroplex look in the nearest one that has lakes, boats are cheaper everywhere this time of year.
Don't mean to be a downer on you're current finds.
As to those boats, which ever one is in the best overall condition would be my choice. The condition of the drive is often overlooked. Never liked 305's, but if that boat is in the best overall condition, I would over look that.
As to the moister meter test... i own a millwork shop and use a 250.00 pinless meter very often. It will tell you if there is moister present, but unless the boat has not been used or rained on anytime recently this will not tell you much. Meaning you will get a false positive for moister problems. They are very sensitive.
Follow the advice on looking at the rot problems, Knock on the transom, check the floor over VERY well... where seats are screwed down and engine mounts are attached is a good place to start. Peel carpet back in the corners. Don't fall for the new floor over the old floor trick.
Good luck!
