1987 x1/9

Hi, I'm new to this forum but I'm fixing my dads old fiat x1/9 that was sitting in a machine shed for around 20 years it's a 1987. And the gearshift isn't connected to the gear box and I found the linkage problem but I have no idea as to where to find a replace. See the pictures below. Thanks...

I have a 1987 Bertone X1/9 that is looking for a good home. It ran three years ago but has been sitting in the driveway ever since. I'd like to see it go to someone who has a bigger need for it than the junk yard. Would anyone be interested in it?