Rust free is probably a little harder to come by where you are and may fetch a higher price. Even here, most of the ones I've seen have the typical rust out at the top, forward area. I have seen a few good pairs at the boneyards here but, never felt like taking the time to pull them. I got a pair off ebay in the last year. Think it was around $100 with shipping. They're in pretty good shape although, when I had 'em blasted and powdercoated, some holes showed up where metal was thin. Fortunately not in view when installed.
I'll take original over repro for sure. What's the asking price?