What I ended up doing because I was desperate was I went to walmart, bought two large silicone blades w/ assemblies and then took out the blades from the assemblies with a pair of pliers, took out the old ones from the rover blade assemblies and put them in. It was a major pain and I dont want to do it again, but I got good silicone wiper blades that lasted for quite a while, but now, they are going "bye bye", which is why im looking at the front D1 arms.
About the rear;
thats right, I forgot that they spray through them, I wish it was like the D1 sprayers (from the side, even off the hatch). I guess I will just buy a rear one; I will first look at atlantic british to see if I can get one for less $.
And yes; my local dealer does sell them for $75/set!!! it is such a rip off. It might have something to do with them also being the caddy/buick dealer and the only LR dealer for 300mi. Perhaps they believe people will give up and just pay it?