The easy answer, yes we do have brochures from 1994 that has all the floor plans and specs. From the floor plans and year, you can back into what model number it is.
Go to the "FILES" section and under brochures, scroll to 1994 and download a copy. TO get to the FILES section, when you are logged in, click the tab on the top of the forum called FILES. In there is a lot of good info.
Specific things to look for,
1. The first is water intrusion. There may not be any obvious signs of a leak on the inside, but that does not mean there are no leaks as water can be inside a wall or the ceiling and not drip into the living space for a real long time pending how slow the leak is. This is true of any brand camper.
See this post on a moisture meter where you can scan the walls, ceiling, floor inside for trapped moisture in the walls etc. You can also scan the black waterproof membrane on the bottom of the camper. Most times, a leak up high works it way down to the basement and stays trapped under the floor. Suggest you get this meter before you buy. The owner may have no idea there is a leak as they have never seen it.
2. Tires. There are DOT date stamps on the tire sidewalls. The date may be on the inside. And if there is no DOT code, then the tires are way too old. See here for how to read the date code
Trailer tires are recommended to be replaced every 5 years. The tread may look great or have lots of tread left, but on a trailer tire they usually ages out before they ever wear out. They are very different then on a car. Look for cracks in the treads or sidewalls. That can happen on trailer tires too and also combined with the 5 years be tell tails the tires need to be changed before much towing is done. Don't forget the spare tires too if it has one.
While having a camper with a small water infection or old tires may be found, that does not mean to not buy it. But it does give you some leverage to help in the pricing as you will have to deal with both. And you know going in, eye wide open. If there is a large water infection, that can take a lot of time to repair. If you can do the labor, (handy with wood working tools) the repair cost can be that bad, just a lot of time. It is not practical on an older camper to hire a dealership to do large water repairs due to the large amount of hours it will take, the labor cost will soon overcome the cost of the camper.
If you really like the camper and still have questions on it, take some good pictures of the roof seams, all around the edges. Do not try and walk on the roof, only look from the side from a ladder. Inside look for any suspect wallpaper wrinkles inside. If you can smell musty mildew in a cabinet or in out in the open inside, that is a sign of a water infection in the wall/ceiling etc. Post the pics and we can help better tell you what might be.
Hope this works out for you. If the camper is in good shape, they are good campers.
Good luck this weekend.