[88WS-6]

I just got a nice, loud exhaust leak from my passenger-side exhaust manifold and figured I'd ask about the remedy. I have a used set of Hooker 2055 shorty headers and y-pipe combo with about 4,000 miles on it but its covered in surface rust. Estimates for media blasting and jet-hot coating are around $400-$500. My questions is if I should try and hold out to save that money or just put them on it current condition? The previous owner of the headers said they were on his car for almost 3 years so I should have some time before they really start to be compromised. Pics of the headers are below.