I own a C&C Landfall 38, (have 15 months and 5,000 miles as a liveaboard) so I can't help you with specifics of the LF'43. But the LF'38 is my second C&C, I believe in the value of these boats generally.
The online C&C community is congregated around the C&C Photo Album. In particular a mailing list operates there, as well as a mountain of info about the boats built by C&C yachts. There is at least one short review by a LF 43 there, and you should ask questions on the mailing list.
The community at the Photo Album really started at Sailnet, but left during their ownership crisis and haven't returned.
See you there.