Sure would be neat if you had a nearby neighbor friend that has a Rv TRAILER to come over and go through all these things with you. Getting a first hand experience is worth its weight in gold as they say...
In my state if the trailer has electric brakes then it has to be inspected. Of course it also has to be tagged.
Everyone got to get their little piece of the pie...
We love the small trailers. the 19-24 foot trailers are boss with me... Doesn't cost much to maintain them and they fit almost anywhere you go camping at..
Your 1991 trailer should have all of things listed in the above Electrical setup.
You will have alot of fun with your trailer... If your Windsor is Colorado you are right in the middle of many wonderful camping places...
Once the dust settles you will want to upgrade your converter/charger to a smart mode type and add a couple of batteries. Change out the automotive incandescent lights for LEDs. Even add a 120WATT Solar Panel. Then you will be more or less self sustained camping in the high sun...
Roy Ken