Sad days for the Cuore :'(

[Niall]

I'll help down south....giggidy

Your garage is talking a bit of rubbish though. There is only 3 reasons for oil entering the bores:
Worn piston oil control rings
Leaking valve guide seals
Cracked head or block

The last would be the only one to need a new engine and I highly highly doubt it's that.
When does it smoke? If it's just after it's been idling then you get a puff on pull away, it's normally valve guides.

Tbh we could have this back together in a day. There is sod all to this kinder egg present engine