That looks so similar to mine it could be a picture of my bike. This is poor workmanship from fhe Italians. A used frame is practically impossible to source. Mine is a blue 09 bike. Hope you get it sorted.
Mine was also very corroded at the bottom of the frame behind the lowest front engine mount where oil is fed too to the engine.
Good luck with it. I feel your pain matey.

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To boldly go where no Tenere has gone before.