Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
I had problems finding some for my F2 luckily i found a NOS set, its worth keeping an eye on ebayalthough i think 1 is the same as four and 2 is the same as 3 so you can get away with buying two of each of the ones available, see if anyone else backs this up thoughPete