Welcome to the site and best wishes on your boat shopping. The Four Winns site has a lot of info that you may be interested in.
www.fourwinns.com Click on the "Owners" tab and look under the "Catalogs and Product Information" and the "Parts Catalog". You can find sales brochures for that model year and the Four Winns "Fast Facts" with engines, weights, performance numbers, etc. Select your model year and other details. Very informative!!!
1. You say it is a 200 Horizon "Sunscape". I don't recognize the "Sunscape" name. I had a 190 Horizon with the "SunSport" interior (2 buckets, a bench seat, and large sun deck over the engine).
2. According to the Four Winns Fast Facts (see website above) the 200 Horizons came with either a 4.3 or a 5.7. All were Volvo Penta packages. Either engine was available with a carb or fuel injection. The engine (for example 4.3 GL, 4.3 Gi, 5.7 GL, 5.7 GLi) would have fuel injection if the model ends with a small letter "i". The letter "G" means it is a GM engine, "L" by itself means carburetor. Back in the mid '90s the boating industry changed the way they rated engine horsepower. Before the mid '90s, a 5.7 with a 4 barrel Carb was normally rated 260hp at the crankshaft. Then the industry decided to rate the same engine at the prop. While the engine still developed the same power, the horsepower rating was reduced to approx 220. Then in the late '90s the GM engines saw the addition of changes (Vortec) that bumped the power back up.
3. An hourmeter was not a standard item. I'm not sure if it was even an option.
4. My understanding is that this boat did not have wooden stringers. My '95 190 did have a wood/carpet floor. I understand the '96 and later went to a fiberglass floor with snap-in carpet (much better).
5. A general comment on any boat is to make sure you get plenty of power. You can always throttle back, but you can't get more than what is there. Most people will recommend a survey, which is good advice. This boat may or may not have flapper valves in the exhaust system. I battled this on my old Horizon. Somewhere in the late '90s VP quit installing them, and issued a service bulletin that they can be removed.
6. Used trailers could be a crap shoot, especially if they were used in salt water. While the Four Winns steel trailers work really well, corrosion can be a really bad situation.
Good luck on your shopping.