Got a local garage to do mine but looks fairly easy, changed main crank pulley & both the tensioner and rider as two were worn thought it best to do the lot so it wont be another Fix It Again Tommorow (FIAT)
Parts from Fiat £160 & local garage charged just £47inc
Sterling Motors in Kettering i can recomend them as a good outfit and i have used them for many years now for all jobs that i can't do!