dont cheap out on rods, manley t/t's are good for just about anything you can throw at them and priced fairly well, and as for pistons i would do cp pistons, you mind as well go rotated turbo setup too =) there are better options for a fp black sized turbo if you go rotated, and it makes working on the car SOOOOOOO much easier!!
P.S. i'll just leave this right here =)
http://mnsubaru.com/threads/fs-ft-rotated-kit.42388/
i bet he would trade you with some cash on top