Allow £300 or so, £100-120 for Luke and Leia and then 180-200 should do the rest comfortably with patience. £350-400 and you can have it done in an hour.
were you asking as in to sell?
If you are looking to buy... i have the first 12 all dated 77 (cloth jawa though)all in very good condition... plus the display stand and postage for 420..
if interested , can send you loads of pics..
Robert