Splicing masts is very common, & when done right, presents zero issues. Some spliced spars are designed to be "easily" disassembled, while others are more permanent once put together. And as to their performance, unless you're racing
, & have one that's poorly built, you shouldn't much notice that they're not one-piece tubes.
On shipping, look for a boat that's being moved along a route
akin to that which the spar in question would need to take, & have it hitch a ride with said vessel. If you go that route
, it shouldn't cost you much.
When looking for masts, try; marinas
, rig shops, (sometimes) used gear
chandleries, insurance companies, especially after a big storm, & a few sources to remain super secret until your clearance is approved :-)
Hey, I can't give up all of my secrets. That would be foolish
Things like advertising in say Latitude 38, similar publications, & bulletin boards (electronic & paper) are options to pursue too. Ditto on yacht club bulletin boards/newsletters.