I almost certainly have to replace the gearbox on my Xsara Picasso 1.6 HDi 110 (late 2004) -- and would expect do clutch at the same time (75k miles; also it is a bi-mass flywheel).
Cost is a very big question so second-hand gearbox is my only option.

I understand the same clutch is used on the models I list below - can you tell me if the exact same GEARBOX is also swapable between any of these models and mine?
Or any other car I have not listed?

Clutch common to 1.6 HDi 110 bhp models of:
CITROEN Berlingo, C3,C4,C5,Xsara Picasso;
PEUGEOT 1007,206,207,307
Is the gearbox also common to any of these?

Many thanks!