Repzard

Those plate look pretty simple in design if you know a welder.
Kinda pricey for just for adapt plates

I like the idea of having 05+ seats though , but not for that price.
rather find a set of 96-98 cobra seats for Newedge...theyre are padded pretty well and have great comfort

99GTvert

You might be able to find a set of 05+ seats for cheaper than that...they do not have to be leather.

The seats in the link I posted look like they are from a V6 'stang, though. The GT seats look like they have more stiches/etc. on them.