This is not a for sale ad!!!

I bought an non named engine hoist similar to the ad below for 145 last november. (brand new+ive only used it three times)
I want to sell it on but ive no idea how much its worth/how much to except for it?
Reason i'm selling it, ive just done a deal on a massive engine crane. Which is more than enough for me.
Any one offer advice??? I don't want to put on ebay with a stupid starting bid+ get nowt for it.

http://cgi.ebay.co.uk/Sealey-PH20-1-...3A1%7C294%3A50