if you click on 'strats' in the online shop, at the bottom of the list is 'prewired pick guards'. click on this for further opions.(standard or deluxe)
i think they're great value for the messing about saved, quality of components & quality of workmanship.
for a strat it also means you can keep your old guard entire if you wish to sell your guitar later(obviously keeping the bkp'd one)