For Sale Pentax 80-320

I am selling this lens for a buddy and thought i would list it here before
E-baying it.
I'm not sure if its feasible due to postage costs and to be honest i have little idea as to what its worth :

It is in excellent condition with a couple of minor scuff marks on the barrell from general use.
The aperture is snappy and free of any oil.
The glass is clean and fungus free but i can see a couple of specks of dust inside the front element.
It comes with its original front and rear caps but no original packaging.
It also has an Arrow UV filter which i forgot to include in the pics.







I will consider any reasonable offer.
Postage to the UK and Europe will be AU$30 insured, cheaper elsewhere.
Just PM me if you are interested.