thanks for the replies guys.
for anyone else following this thread here is the pictures of the sedan with 350z suspension.
http://www.skylinesaustralia.com/forums/topic/282805-review-stock-350z-suspension-vs-stock-v35-suspension/
apparently a 1" drop. Doesn't look it in the images though.
I don't really want secondhand shocks, so the GT-8 stuff is out, unless I buy new from Nissan.....if I wont the lottery.
Im still trying to find out if the tokico G35 shocks will fit, I suspect they will, but Im concerned they are for the coupe and not the sedan and I dont want the drop.