Best bet is a reconditioned gearbox and fit a new clutch with it.
They supply it on exchange, so yours goes back to get reconditioned for the next customer.
You should get at least 12 month warranty and hopefully they've used better quality bearing than Fiat did!
Prices start around £375 upwards to supply.
My local gearbox specialist charges £350+vat to supply one.
You might find someone to repair yours but you'll want them to strip it down and recondition it all anyway, I wouldn't be happy if they just identified an input shaft bearing and replaced that and there's more possible damage inside. To do that you'll have to wait for them to do it.
Unless you can test a used one, I'd steer clear unless your budget is really, really tight.
The guy is off to a local gearbox specialist will they have one to swap with? Silly question maybe but this is new to me!
I just need my car back on the road!