RS factory exhaust manifold

Hi Guys
 
A while ago I purchased a heap of spares  , a part of the deal was an original  RS exhaust manifold and pipework ( same length as extractors ), it has the RS logo etc
 
Just wondering if anyone has a rough value on these things , I am hoping $300 up . I have listed it on E Bay as I will never get around to fitting / using it 
 
Cheers Craig