my 7, the money has already been spent. its clean and rust free, aaron also checked it out when it was forsale in vic.
http://www.skylinesaustralia.com/forums/topic/436461-2001-mitsubishi-evolution-7-249kw-on-98/
it does change things, your insurance company will want you to deal with all the shit instead of them, they only want to deal with it all if its full comp.