looking for a set of 17" wheels for my 906 with discs if pos i do also have a spare set of 750s/906 wheels for sale offers ?

what size rear, 4,5", 5,5" ? Ebay UK has a lot of used wheels just search for "Ducati wheels". They`re starting at 30GBP. Front wheels are of course always more expensive as more common to be damaged.
Note that there are different axle sizes specially on newer Ducs so you may need to replace bearings and bearing spacers (incl the ones in the sprocket carrier).

G.