The Sunsetter is a great boat. However, there are a couple others that I would rank slightly above the early 90's Sunsetters as far as wake goes. Probably the best wake for older inboards is a Ski Nautique 2001. However, this is a small boat with a closed bow. You can usually find them in the $6,000 - $12000 price range. They were manufactured from the mid 80's to the late 80's.
Another great boat is the Sport Nautique. These are early to mid 90's boats that look GREAT and put out a great wake when weighted properly. (This boat will cost you more though).
Other boats of interest would be the Mastercraft ProStar 190 and 210, and the Supra line (a few models, such as the Martinique and some others).
Moomba has made leaps and bounds in the past 5 years. Before that the wakes weren't what you could get out of the boats that I mentioned above. I would shy away from the Outback and smaller Moombas for wakeboarding, but they make really good ski wakes.
There are many options out there for what you are looking for. Check www.flipsell.com
for an exaustive list of used boats (also the classifieds here on Wakeworld).
One word of caution is to check the wood stringers on the 80's boats. Make sure the engine mounting bolts can be tightened. If they can't be tightened, then it is likely that the stringers have rot damange and you should run from that boat like the plague.