I have100m which has been more than enough for the East Coast USA and Caribbean.  Once in the S Pacific will be routinely anchoring in 35-45m.  You can’t put enough chain for that in your bow locker, too heavy.  I will add another 80m of one inch nylon three-strand for those deep anchorage’s, assuming I can make a rode-to-chain splice that will go through the hawsepipe.  If it won’t,  I’ll try 7/8” nylon rode, but don’t think I’d be comfortable with anything less than that.