How do I remove the rear quarter panels?

my current ones are rusted like a beotch. Needless to say, I found a donor car with little to no rust.



All in all, I'm planning on cutting my current ones out and welding new ones on. Only concern I have are the reinforcements.



If anyone has done this, knows someone that has done this or knows where I can find out how I may proceed to do this myself. Please let me know.



I miss my old RX8, I can't wait to restore it.



- iSki123