Good grief! Just take any old nylon lines and tie them to your anchor
chain with rolling hitches. Actually, you can take one longer line attached to both bows, mark the center of the line with a piece of tape, and then just tie the doubled line near the center to the chain with a rolling hitch. A rolling hitch is strong and won't slip. No ropework involved. I did it for years on my catamaran
, but I lead the main anchor
from one bow, and then just lead a light line from the other bow to tie to the chain, then let out just the right amount of chain to form a nice V at the bow. Works easy peasy.