Skytrex White Metal water cranes

Hi All. Today my new water cranes arrived . They are fairly clean as cast white metal kits go, I realise that I have to be careful in the way I handle them,but, once I have removed the rough bits, there are a couple of holes that need cleaning out?  to fit the parts together, and then, there is the subject of glue? The soak away is made of plastic and of course has to be stuck to the upright post of the crane , all other parts are white metal . And which is the best glue White Metal” and secondly which glue is best? For gluing “White Metal” to “ Plastic “ ???    .Best wishes Kevin