I wouldn't put any seat covers. Those seats are vinyl and will last a long time. If anything, I would tint the windshield some extremely light tint to keep UV out, and make sure you have some other grade of tint all around.

On my 911 I have 90% tint on the windshield and front windows, you would never know its there but it does a good job protecting the leather dash from warpage.

On a 202 the hardest part to wrap I think is the B & C pillars. If you can get denim to stretch over that, you'll be fine. Or you can always have an upholstery shop help you run a stitch along the crease.