-
I don't think anyone would give a shit if you listed it for a sensible price.
All you have to do is google the general sale price of the item you're selling (if it's still on general sale) then account for the fact it's used, then consider what a genuinely acceptable sale price might be.
It shouldn't be of consequence to us either that you're trying to sell from France, to UK, as such the postage costs should also be for you to adversely consider when selecting that sale price.
Because i'm searching the same position like the look kg i have on an alu aero frame. I also have the look 464 but not the same feeling.
I had a specialized allez same size so i tried but finaly not the same geometry. That why i sell it.