Vintage Simmons Drums (UK) Users Group

I have finally decided to sell my SDS 5 brain and bass pad through 
Ebay.  I have been toying with the idea for a few months now, but due 
to sentimentality and apprehension (I've never tried to sell anything 
on Ebay yet, but have had good experiences buying CDs) it has taken 
me a while to finally decide to do it.  What would be a fair reserve 
price for each of these items?  I have no idea what I can reasonably 
fetch for these things.  The brain is in its original box and packing 
and has been serviced and checked up a few years ago and I have the 
ears for it to (I think).  The bass drum pad is now stored in a hard 
shell cymbal case, but I think I have the original box in my attic.  
I want to get a fair price, but I don't want to part with them for $5.

Michael