JohnDuncan:I'm staying out of this - though to counter the 'safety' argument, that would suggest we should never change a plug..........
Look at www.audusa.com (based in Kingston), who can provide you everything you need to do what you want, at good prices.
Well to be fair, the RA website does say this job needs to be carried out by a qualified electrician. It's quite a step from changing a plug...