Problems Sizing Ground Tackle for 50' , high windage cat

I can't seem to find exactly what I'm looking for.

I've decided on an 80lbs Manson Supreme anchor.

On the other end of things, I strongly prefer a manual windlass. The Lofrans Manual Windlass has served me well on 2 previous boats.

The largest it accepts 3/8" HT chain, which has a working load limit of 5400lbs.

The 3/4" dock lines for this boat have a wll of 17,000lbs.

I can source anchor shackles of up to 14,000lbs.

So the windlass is severely limiting my anchoring strength by limiting my chain size.

What should I do?

I cannot afford, nor do I even like powered windlasses .

I live alt anchor through named storms and severe thunderstorms and prefer to be safe.

 

Chain strength ?

Check out:
http://www.setsail.com/chain-size-break-strength-and-safe-working-load/
and,
http://www.boatsafe.com/marlinespike/safeload.htm
safe working load and breaking strength are different by a factor of ???
I suggest the chain you are looking at would be suitable.

 

Thank you.

I tend to go a but nuts on anchor security.

If I could, I'd carry and deploy my own mooring or own a spud barge.