Regarding the question about recourse - you may apply for an alternate
means of compliance or an adjustment to the compliance time (true for
any US AD) - however, you will have to develop, or provide, an
equivelant level of safety. The FAA guy listed at the bottom of the AD
can help you understand what this means and how to do it.

If you have a type club, or owners group, get in touch with the AOPA
and get on the AACS list.

Jim