Generally speaking, most are okay to take on the kinds of trips which are being discussed. Though in order to do so safely, & with peace of mind, there are some steps to take first.
Get her righting moment tested. And by that I don't mean trust what's listed on the boat's design. As without question she wasn't built exactly to those specifications. And even if she were, heavy items have been added to her, or changed since then. Including adding or shifting around batteries, tankage, substantial structures, etc.
When you're consulting with someone professional on this, also try & get a fix on her roll periods in various circumstances/conditions, as well as other similarly key figures & data which contribute to both her seaworthyness & comfort.
Twin engines would be preferable. To include seperate fuel
systems & tanks
for each engine
. With 2 sets of fuel filters in parallef for each engine
. Along with vacuum gauges, & built in bleeder systems.
All of these redundancies being to attempt to ensure that you have both engines operational all of the time. Even if you should take on bad fuel. Such that you can easily maintain control of the vessel in poor weather conditions, or when entering narrow channels & harbor entrances. As if you lose power in any of the above, things can go south, quickly.
You'll want to try & have some redundancy in her steering
systems as well. Probably including AP's hooked up directly to the rudders. Not to the steering cables
on the bridge or elsewhere, in case of a primary steering failure.
This way you can drive via the AP remote
if you're forced to. Where as if they're hooked up to the primary steering system, & that fails, then you've lost
a key backup.
Also, set her up with a series drogue
, including proper mounting hardware
. And everything else needed to easily & effectively use one, needs be.
Plus do some worst case scenario prep as well. And ensure that all of her openings have overbuilt closures, along with some levels of backups to them.
There are more boxes to check off, though these are some of the key ones. With more tips likely to be found via the Dashew's website www.setsail.com
Given that they have loads of experience with powered, as well as sailing vessels.
Plus which, there's some excellent info in their books
which covers handling power vessels in poor conditions. In addition to how to set up such vessels for successful, stress free trips.