I didn't use a kit I just followed some other peoples pictures and made my own from them. Thats probably why I am having so much trouble, and also because I know nothing about boats. I just received my Seaking 90A ESC from ebay today, and I am using my Velineon 3500kv motor, with a 3s 25c 3300mah lipo. I haven't ran it yet but is sounds like its fast.