Sorry to hear about your issue darkblader. You'd think as expensive as Filcos are they would have more durable keycaps.
I'd recommend ignoring any shills/trolls that tell you "deal with it," they tend to have their own agendas and there's no reason you should have to put up with this.
If you can't find replacement key caps you could try sandblasting them, or even sanding them by hand if you have the time, superfine grit sandpaper, and something curved to lay the sandpaper over. See my KBC Poker link in my sig for my results from such an endeavor. Sandblasting would be easier and give you better texture but you need the equipment. In either case you'd also wind up with blank key caps obviously, so that needs to be acceptable also.
Good luck!
