Coolant Tank Repair

The coolant tank in my '90 Testarossa has developed a pinhole leak on the top side. Does anyone have any recommendations on a place that can repair / restore it?

Thanks in advance

 

No issues with buying a new one but I checked several well know part suppliers in the US with no success so far. Did Ricambi America shut down their main parts business? Seems like all the diagrams are gone and they have very little parts on their website now.

 

Appreciate the links and may be a viable fall back. I was hoping to source in the US instead of having to go overseas.

Thanks again

 

Was able to source it through All Ferrari Parts. Didn't think that I was going to be able to easily find a new one. Appreciate the previous responses.