NOS ICP's show up from time to time on ebay & Amazon. I just looked and there's one listed on ebay right now for $175 plus $14 shipping.
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Considering on average JY's in my region want anywhere from $75-$125 for (ahem) pre-owned units, that's not really all that bad for a new one. Depending on the part JY prices can swing wildly by region. I've seen posts here in the past where folks in other regions have paid as little as $25 for a replacement. You might try hitting car-part.com to see what parts yards in your area are charging for one to give you an idea how attractive that NOS pricing is.