You might also consider:
Tell them you read this in the Easypano Panoweaver forum. You might send Agnos a quick email. Mention your camera and lens type and ask them for their panorama head recommendations.
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EasyPano - Panoweaver
Then you should use Paypal and pay Agnos that way. (use can use your credit card and you DON'T need a Paypal account) I don't see the problem faxing CC information. All credit cards have safety nets for fraud if this is your concern (Visa is best). The service at Kaidan is very bad from past experience.