front wheel flairs and spoiler question

im looking for a set of front wheel flairs and a front spoiler for my 75 trans am clone, im having a hard time finding the flairs for my 75, would other years match up to the front spoiler? possibly 74 or 76?
i have 79 t/a fenders and i know the bolt holes dont line up but i can fix that i just need the wheel flairs to line up with the front spoiler
any help?
thanks