I tried a search but have not found an answer so I thought I would post my question.

I have a vintage 100L tank that has a large series of dents in the bottom when the car was bottomed out in the past. In addition, there is a crease on the top side as well.

** Has anyone found a good source to cut the tank open and straighten/remove the dents? Resealing would involve re-welding and grinding to endure no leaks.

Thanks!