1981 johnson 35 hp manual start model # j35rc1g,it is a short shaft i bought a new boat and like a dumb --- did not stop to think about shaft length,well i need a long shaft,can i convert this motor to a long shaft?and if so is there a parts kit i can buy?i would need everything.also what about a jackplate,would a jackplate work or would it interfere with the tiller handle?do not know much about them,thank you for your time,and i appreciate any help