I just had a fresh batch of 1957-9 power steering pump decals printed. These are laser printed on water-slide paper and look great !
This decal is available from a number of vendors. But there are three problems. First, they are printed on sticky-back paper, which in my experience will lift at the corners in a short amount of time. Second, they are printed on high gloss stock. Looks very incorrect. Third, they are printed oversize, so they won't fit without significant trimming.
Mine are on water slide paper. The decal lifts off the paper backing after soaking in warm water for about a minute. A much better adhesion. Also, when dry they have a semi-gloss appearance. See photo. Finally I have reduced the size by about 3/16", resulting in a perfect fit. Again, see photo.
My asking price for the decal is $10 + 1 for shipping. Outside of USA, shipping will be $2 worldwide. Message me if interested. I accept paypal.