Hi Elariel and welcome

Thank you for coming here to answer my query. I hope you stay and we can learn more about what you do.
I have in fact thought a bit about coating sheep to produce a better quality fleece. I used to keep a flock of 'fleece specials' ie very fine-wooled crossbreeds, whose fleeces I sold at a premium. However, I think coating must be of more use in a dry climate, where the coat prevents damage from the sun, and keeps veg matter out. Here in Scotland it's SO wet that fleeces felt easily, even when covered, and the rubbing of the coats seems to make it worse.
However, most of my sheep are Hebrideans now and they have a lovely rain-shedding double coat which is primitive and not a finewool. The only fine fleeced sheep I have currently are two white Shetland ewes and I will be using their fleeces myself.
Really my problem is that I simply can't do the work to process all the fleeces I have stored. Also I have over the years cherry picked the best fleeces to sell or spin myself, so what's left is definitely poorer quality. I will though have a good look through and offer for sale any which are useable, which I don't think I can make into rugs in my lifetime
I have though always wanted to make some larger pieces of felt for embroidered floor rugs but, apart from going to one of the WinghamWoolWorks days when you can use their felting machine, I can't think how to make such large pieces. Well, I have toyed with the idea of towing a big roll behind the LandRover, a bit like they tow one behind horses in Mongolia when they make a new yurt....now that would be fun

But then we are back to the fact that I also have to do the smallholding work, grow my veggies etc, maybe do the occasional bit of housework

. We'll see.