
Its done how many miles since the top end was done

and you done what

It sounds like the clutch, the smell will go after a while or after a long motorway drive, but it could be the smell of new gaskets etc from the rebuild, I suggested now that you change the oil and filter, if any bits have kicked off you don't want them getting in the way of the good oil that might be left

You really should take more care of it, these cars are solid and give us alot of fun, but how much longer do you want to keep on having it?

Hopefully no damaged was done, I don't suppose it would have, at least you not tracked it straight after the rebuild

But the engine in the first few mins from cold can get severly damaged with use like that, if the engine is working hard at high revs the pistons will feel all the work especially with a change up during high revs, the clutch is designed to take some of the torque away to avoid damage, but it can only do so much before sustaining damage itself.
CRAZY