I dont think selling your car will solve anything I mean the problem with the prices
are indeed insane sometimes ,but that happend to three doors 5 years ago i mean go try buying a front or rear bumper here in Holland , they ask an easy 300 - 400 quid at some breakers over here.
I mean ok you have to get creative at some point but i still got My 3 door and love it to death.
On the other hand if i look at myself i could sell al my RS Ford and then i have to buy me another Toy wich will have the same problems because it will be as exclusive or special so its an never ending story.