Peter,
In a 1989, why would you have to do the floor over, is it worn? Or do you just want the wood look? My '89 23 footer has a nice pattern that looks like hardwood, but is one piece vinyl. I does not look quite as nice as the real thing, but it is close. I do not know if it was original or not, as I never met the owner for this trailer I picked up at an auction this month. The 1986 31 Excella I picked up last month, the one with all the cracked water lines, had carpeting and vinyl. I am going to put real hardwood in that one after the weather warms up and stabilizes a little more. I will set the hardwood in the trailer for a week or two, like you do in a house, to let the wood acclimate to the trailer. Then I will install it, I am lucky I have New England Hardwood's wholesale about 20 miles away. They prefinish there own hardwoods with a few different types materials, then bake the finish on, so it is about indestructible. So that is my plan for that trailer, after I am finished with it, I will use it as a fishing camp for the summer. Then I
plan on selling it in the fall, as I like the smaller Airstream better to tow and I want someone to use it, instead of letting it sit around in my yard and rot.

Good luck on your flooring adventure. If you lived close I would put the floor down for you for FREE! I love to work on things, I used be an aviation structural Mechanic and electronics tech., Yes both, I became duel certified while in the Navy. I got to stay on land more that way, as they needed
experienced people to fix major problems on the land while my carrier was out to sea. After I got out and before I went into the service I was a carpenter, so flooring is easy. Now I have the best job in the world, I work from home via the Internet doing Architecture for a firm in NYC, long distance. I can
travel whenever I want, except for my wife is a teacher, so we have mostly summer trips.

Rob in NY