捷克采购需求：军队防暴头盔、军警防暴头盔、军用防暴盾牌、警察防暴头盔、警用装备

I'm interested in purchasing the police anti-riot helmet you offer. Specifically, I would like to know the pricing details for both a single unit and for a bulk order of ten helmets. Additionally, please provide the estimated shipping costs to the Czech Republic for these quantities. It would be great if you could also specify the payment options and any potential lead time for delivery. Looking forward to your prompt response!