I have a M&S 80 that is originally a flat top that I want to put a script top on. Is there any way to add a socket to the existing light manifold? There is a piece of pipe that comes off the existing manifold that turns up like It was put there in case a script top was added later.It looks like it just needs the little plug pulled out and a socket added. Has anybody done it that can give me some advice? Thanks.