here is a 97 for $21k USD.
http://newyork.craigslist.org/jsy/boa/2976443738.html
i have 2800scr , 2000 with the single 7.4
as clean as the boats are they are still 12 years old and the "solf" items are usally shot, i.e, gaskets, electical motors, wiring issues, and mainfolds:
here is my list:
1. check oil- oil dirty oil is good, new fresh oil means you can't tell if your have an issue like water in the oil.
2. pull a spark plug, and look for moister, before they run the boat.
3. stick your head all the way in the back of the engine and look for "white salt trails" that would indicate salt water drip marks, for the outdrive gaskets.
4. have them pull of an exhaust elbow and look down inside for any water drips.
5, test all electrial items, and makes a list. flipping switches will not cover everything if something dose not work, you bought it.
6. check the boat in the water, unexpectedly.... and see if the bigle is dry, the salesman will prep a boat.
7. same goes with a boat on shore power all the time, disconnect it, then check it the next day to see if the batteries go dead.
8. a boat without a windless, and A/C has poor resale value.
9. look for damage in the trim tab hinges on the boat out of the water, dents, or broken hinges.
10. wiggle the out drive, to check for slop in the steering.
11. have them drip out some outdrive fluid from the bottom of the drive to check for water, or metal.
rememeber, its a used boat, so someone got rid of it for a reason.....