I have a 90 25ft. Classic so I am in the same vintage as you. Next time you wash the HiLo just use regular car wash soap. Some brands have a little wax in them. When you get time you may want to consider a good wax job. I use Gell Gloss as it is a good cleaner as well as a quality wax. I'm sure we all have our favorite care products. Today ,I took a picture of my window blinds curtains for you. All of my curtains are off except one set as we are in the middle of major restorations. If you need me to give you measurements just let me know. My daughter has promised me that she would post pictures today after work. You should be fine with metal blinds. Our blinds are full size metal. You could get your blinds a little at a time. Maybe cheap ones,then replace when you can afford them. Hopefully you can post a picture soon. I,ll never forget washing every inch of the HiLo,in and out. What fun picking dead flies out of the window tracks.!! We bought it used and it is now 21years old. Have a relaxing christmas with your family.