TD
I'm just trying to point out that the mtn occurances you describe could be considered normal depending on the issue.
On some cars you can change the clutch and cambelts quite easily.
On a Porsche 911, changing the clutch is an expensive invasive operation, due in part to its rear engined configuration. On a Ferrari 348, you have to take the engine out to change the cambelts. These are "normal" mtn procedures, but are quite extreme compared to other cars. This doesn't necessarily mean they are badly designed cars (though you could argue the fezza 348 is a bit of a lemon!). The difficulty of a mtn procedure will depend on many things, and some maybe fixed in theatre, some may need return to UK, some even return to the manufacturer (or manf need to send out a dedicated fix it team).
Just trying to help - don't think the various mtn levels requiring different approaches is necessarily a bad thing. Better the job is done properly at the right mtn level, rather than botched in theatre with the wrong tools / procedures!