25-01-2016, 01:14 PM
Just buy a 306 HDi one and it'll be fine. There's loads of them about and they're routinely less than £50 on here, so not worth messing around with anything else when they'll be a straight swap other than needing to change either the clutch arm/fork (to use your existing XUD pull clutch - which is what I would do) or the clutch, flywheel and cable (to use a HDi push clutch).
1990 Peugeot 205 GTi 1.9 // 1991 Peugeot 205 GTi 1.9 16v // 1992 Peugeot 205 GTi 1.9 // 1999 Peugeot 306 HDi Estate