New Bride seat cover?
 

I've tried looking around but can just find the Bride fabric and the protectors for the back of the seat but I wanted to just buy a new zeta 2 seat cover but can not find them anywhere. Would taking it to a upholsterer to have one made work just as well? Anyone have any experience doing this?

Take it to an automotive upholstery shop and see what they say. The embroidered logo and gradient fabric would be the hard part to reproduce. Like you said, the gradient fabric is available all day.

You used to be able to order replacement seat skins from Tees-USA (no longer in business) as a special order item from Bride Japan. You can try getting the part number and contacting a current distributor about them. I've purchased from More-Japan (Tanabe/SSR USA) a couple times with good experiences. They list many but not all of the Bride replacement parts on their site. The Bride catalog (Download?BRIDE?) pages 30-32 has the replacement parts and fabric stuff. Bride even offers a full FC interior package.

Thanks a bunch, have sent them a message about it!

if that doesn't work and an upholsterer cannot duplicate the stitching you could ask them to do a cutout and stitch it to the new fabric(assuming it is in decent shape, as usually they are. the bolsters at the door edge get ripped up first).