It depends on what type leather,cloth,vinyl, etc. I too am lookin for Bucket seats for my 71. You can try the junk yard or an Auto Recycling Yard, you may be able to find what you want there. From what I hear the Maverick bucket seats weren't that great the best one's to try are the Mustang one's but you'll have to do some modifications to use em (drill a few more holes in the floor board, add a couple tracks, etc) thats probably what i'll end up doin.
I already have some bucket seats in it ( from a dodge omni ). I guess the info I am looking for is, someplace that sells aftermarket part or old OEM parts. Thanks for the info