Chimbu
Mate,
the link to firebossllc.com doesnt seem to be working.. but if you check out wipaire.com who make the stuff you will see the 8000 series for the C208 is in the mid 200K mark and the 13000 series for the twotter runs to mid 400K.. considering the 10000 series is a special cut down version of the twotter setup with the extra plumbing etc etc I strongly suspect 426K would be about right eh..