Welcome to the forum.
i beleave the output of the pi is dead i tried to reconnect the client and it would not connectI normally argue for as small a splitter as you can get away with. I would suggest using the output port of the PI to feed your third C41 and drop the 2-way splitter. Don't change the 4-way out.
However, all of the suggestions will work just fine, and always remember: "If it ain't broke, don't fix it."