I am back on the road!
Alan took the driveshafts out in the end, cleaned up the mess I made in the mount, greased it up and pressed the new bush in. Only took 2 hours and £92 quid (+VAT). It took me three hours just to knock the old bush out.
The car seems to drive much better with less vibrations and gear changes are somehow much smoother. Could be the fact that the gearbox oil was replaced. Or the fact that local roads are made out of sheet ice right now and I was driving like a granny
Now I seriously need to wash the thing and tidy it up inside. Too many things rolling around inside!
My dad said that his bottom mount went on his 106 and he just took a load of No Nails type stuff and stuffed the whole of the bush with it without replacing a thing. A bodge job but it lasted him a good few years already.
On a side note, there's something satisfying about getting into a 406 after being forced to drive something else, like my mum's diesel Clio or my dad's 106. It's almost like coming home.
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp

)
2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium