I have a bit of experience with this and yes, Galvi wire is fine as long as you are willing to dress and inspect it each season. Pine tar (available in most tack shops) and turpentines is the mix for this but, as you might figure it will stain sails
. I have been around workboats too much and Molly B reflects that with galvi fittings including painted galvi straps and a couple of galvi pipe stanchions. The swordfishing boat next to me has all galvi fittings. The owner is sloppy with the maintenance
but for even for that there isn't much rust because everything has a ton of paint
On the minus side:
adds to maintenance
and doesn't add any value to the boat. (Unless you know you wont be selling ever)Most any buyer will walk, seeing a rig replacement even if the wire is cared for properly. Also there is good Galvi and bad so you have to research
On the plus side:
Cheaper initial investment. Easier material to work with... particularly with DIY fittings. Will let you know before it lets go... not subject to cavity corrosion
etc.(makes it a better material for Keel bolts
if handled properly) debateably stronger for weight.
Galvi is a fine option if your budget
is really tight and you want to get going but as funds allow switching over to stainless will make a lot of sense particularly after a season or two of dressing the wire.
This is just opinion of course and free advice is worth just what you pay for it.
Good luck... would love to get more info as you work with the galvi. Not a lot of folks doing it anymore