I bought a Mantus anchor from Ildost Marine about 5 years ago, without any issues. I also notice that they are not longer listed as a Mantus reseller.
Why not send Ildost a mail an ask them. The may have some stock left, that they want to get rid of. If you are lucky....
Use paypal and they never see your CC number and you have protection if it never arrives. Pretty safe that way.
Just be aware that if you use your credit card, and end up disputing through your credit card because Paypal won't return e-mails, you WILL receive an e-mail from Paypal, informing you that their protections for your purchase that they claim to offer are now all null and void. In the middle of one of those issues right now. . .