Hi Samee
The 10 K should be no problem, but then you dont know what your anchoring into. Where is Rock? Is there cobble, boulder or obstructions that would not allow you to drive the anchor.
How do you propose to resist the 3 K side load with a manta ray?
I think you may have the cart in front of the horse. Find out what your dealing with and then select a system based on that site.
First, begin with soils engineering.