Hello.
I owm an original tuner (anyway, they are the very same hardware design, apart the PCB and some cosmetic).. you can't belive how hard was to find one from USA (I'm a northern Italian, ciao connazionale!).. you will hardly find one in EU, IMHO.

PCATS seems unable to supply kits and original parts arey pretty rare.
One things for sure.. If my very own will fail (and found to be unrepairable) I will surely use a RS232 tuner (li trovi nei mercatini a 3 lire!), inject the audio via AUX and fool the player adding the relevant support to the excellent Hijack kernel.