Very likely quite costly to bore out, yes.
Agree with @Christophmx5, if you go for a swap, make it an NC2 or NC3 engine, if you’re not getting something funky.
Link here for a way to identify the engine you’re looking at.
From memory the 2s and 3s have forged cranks and pistons, meaning they have an extra 500 rpm at the top end and therefore are that bit more sturdy. Tried finding a link, as I know this discussion has turned up before, but can’t find it.