I know that it's the common problem of rangies and discos.
I've read some your messages which are devoted to the rusty topic. Thanks for photos, they are very helpful.
The problems of my Rangie are quite common: a-pillars, rear wheelarches, outer and inner sill panels... Theese parts need to be replaced by the new ones. The main question is: try to order special replacement parts from UK or try to make them here in Russia. I'm searching for as many restoration reviews as I can, examine them and will make my decision.
Thank you very much for your support, because here in Russia very few people did the complete overhaul of rusty Range Rover body and your experience is very useful for me.