I got the bushes in a kit from GSF, thats all the wee whitre ones and the orage one. for the under car kit i got that from VAG, and the relay shaft you can buy from GSF/VAG, but I got an uprated poly bush for it from missinglinkz in the states

in the past when I'm in a pinch I went to me local scrappy and pinched the relay shaft bush from a MK3, the shaft itself cannot be used as its different but the ball you can swap over. Several SEAT Ibiza/Toledo models also have a similar linkage setup too.