If you're having a look Cavey, you're best having a poke around bestofpinball.de. I think Bay Area Amusements was the US online retailer selling them as well, but a VERY limited selection compared to the German site.
I think it ended up costing me around $250AU to get shipped here. 100 Euro for the protector, but I wound up ordering some extra stuff that's hard to get here whilst keeping the shipping the same (an upper-right Fliptronic rebuild kit to throw in my HS) to kind of justify the price. IMO it's still a steal for what you're getting: a hassle and commitment-free alternative to clearcoating.
I have a busy few weeks coming up with the GP and Texas, but I'll post my impressions here of it when I get a chance to put 'er in :)
