Stilo 182: Timing belt change Stilo 1.9 JTD, 115PS

Servus to Alle, My question refers to a FIAT Stilo 1.9JTD 115PS 77tKM. Unfortunately, the timing belt is due. Although the KM would still be ok but it has to be made. Unfortunately, I need special tool – with make-up it’s a bit too hot with a diesel. Or does it work? 1. Has anyone ever done this before? 2. Where do I get the special tool. In the workshop we don’t have such a thing.