Is there interest? No doubt. Can you get a good price? I doubt it.
Unless your Eclair is taking up much needed space and/or you'd just like to have it used again by someone, I'd vote for keeping it yourself, perhaps for personal projects. There are people who'd want to buy it from you, but you won't be able to get much more than 1200-1500 EUR for it. This year I have seen two German S16 Arri SR2s sold on Ebay for about 1200 EUR. Prices have come down a lot even if there are still people trying to sell old and semi-rusty Eclair NPRs for 2000 EUR there.
There is one quite similar package for sale up on Ebay at the moment. You might want to take a look at for how much it sells: