Hi, I found lots of info about Nacra's at the www.performancecats.com website, even a price list, which though out of date, still seems to be in use, at least for the parts I've needed so far.
Good luck with your new cat,
Mac
Galveston Bay, Tx
1986 Nacra 5.0 2006
Towed by: Blackdog_Express - 2001 F250 PSD