You could try, don't be suprised when it goes up, a lot!
24 bids already with 4 days still left.

But definetly give it a shot
If you're prepared to possibly end up paying more than you would for a new one then by all means good luck. Some people on eBay actually go crazy with these things. I once saw a Fender Stratocaster Tremolo Arm (just the arm on its own) probably worth about £10 sell for well over £50 haha.