I just purchased my first Yamaha and I am in need of some help with a part assembly. I need to replace the flush out assembly under the seat. The place where the water hose connects. The hose is still there but everything else is missing. Can someone walk me thru which parts I need. On the Yamaha parts chart I think I need : part #59,60,61,64,65 will I need all of these? or is there a assembly kit to purchase?