Sadly I bit the bullet and ordered a new bearing support from AE Cars (listed for the Integrale but i'm fairly sure it will fit).

I couldn't drift the bearing out of the housing even with lots of heat and then I broke my vice in the process of trying. It needs a press and it will only delay me in getting the car back on the road.

Depending on how much Sikaflex I have left after doing the dogbone bushes I may still go ahead and try it and then sell it on if anyone is interested.