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Been there too, and decided not to buy Mantus due to the excessive shipping costs, but to rather buy a Rocna from my local supplier. The local supplier was sold out of Rocnas of my size. Eventually I found some other local supplier that were reselling Mantus anchors for a reasonable price.

The Mantus is pretty unique that it can be screwed apart and stored or shipped in a flat package, but personally I just needed a bow anchor I could trust, so for me Spade, Rocna and Mantus was pretty much the same - it all came down to the question of getting as much anchor as possible for as low price as possible.

By now I believe there are also some European anchor (perhaps in Slovenia?) manufacturers that are producing Rocna-style anchors, but I can't find back to it. The French Spade is also a magnificent anchor (always scores best in all anchor tests done by French boating magazines), but is also quite expensive.

I wouldn't buy a plow-style-anchor (CQR), unless the purpose of the anchor is to plow the seabed :-)