Welllll...so you switch the LCAs and get the ACdelco quick struts that puts you in the 600 +tax and maybe shipping range.
For a 2003 you can get FCS(whoever that is) quickies for a smidge over 200...for all 4 from the Rock.
For 600, I would do FE3s from Amazon(around $85 each) then some Monroe mounts($100) and call it a day. Those things will take a beating.