I have a car that is a garage queen like you describe yours (so far this year driven 210 miles). It hasn’t been bucket and hose washed in 7 months because it never sees anything but sunny days and at worst has dust and environmental fallout from sitting at car shows or cruises. Otherwise it resides in a climate controlled garage. Personally I rarely use QD because I believe it isn’t safe enough, and marring could occur. I only use it in a pinch to clean up after a bird bomb, or some fool that feels the need to touch the car at a show. (The better it looks for some reason people feel the need to “touch” the paint”) I have had excellent results using ONR and a two bucket method. I use distilled water and a micro fiber wash mitt. To dry I use a cobra waffle weave. I feel the additional water in the method helps loosen and lift contaminates up off the surface and I have not found any marring since going from a QD to this method. ONR adds a polymer shine that I am not terribly fond of so I got a sample of the D114 but have yet to try it. For me a rinse less wash is much safer and much more effective than using a QD. I leave the solution in a sealed bucket and use it a few times before pouring out and replacing with a fresh ONR / distilled water mix. The biggest battle is just air born dust in the garage, so I hit the car with compressed air the give it a quick rinseless wash and it’s ready for a cruise or show. Hope this helps.