Quick pulley question...

Have an electric winch on my boat. Uses small 1/8 rope and 2 ft of 1/8 chain. About 8 inches, or 1 wrap of chain will wrap around rope, on drum in housing, when stowed. I want to add 5 ft of 3/8 chain to the end. Note... A davit is 1 roller to allow anchor line to drop in water off top of bow. Allowing 90° drop, and also holds anchor when stored, keeps it from swinging in the wind. Can I install 2 statationary pulleys to more or less, store 3/8 chain, make up the difference in length of new 3/8 chain, keep the 3/8 from winding on my rope drum ? Instead of running in a straight line, from winch to davit, I'll have, 1 pulley in front of winch, where davit is now. 1 pulley next to winch. Move davit to in front of 2nd pulley, to the tip of the bow. I'll have an " N shaped path. Winch and davit for anchor, would be mounted at each point on the "N". The 2 points of diagonal line on the "N" would be stationary pulleys. Which would "store" larger 3/8 chain. Allow 1/8 chain and rope to pass thru rollers. Would that affect lifting capacity ? If...proper chain roller pulleys are used. I'm not introducing mechanical advantage, or snatch blocks, only using pulleys to allow a bigger chain at the end, between current 1/8 chain and anchor. Increase distance between Davit and winch drum. I DO have a basic drawing, but didn't know how to post a picture in this post. Will this work ? Thanks !