engine bay repair (dents)
Those stud pullers work great for dent removal.
As far as temperatures go - depends. I think you'll be fine. I have a header tube that passes pretty close to the inner fender and the paint has survived. If it doesn't damage the paint, I doubt it will harm the filler. You could use something like "All-Metal" filler which is a lot harder than standard fillers - but also more diffcult to work.
Those stud pullers work great for dent removal.
As far as temperatures go - depends. I think you'll be fine. I have a header tube that passes pretty close to the inner fender and the paint has survived. If it doesn't damage the paint, I doubt it will harm the filler. You could use something like "All-Metal" filler which is a lot harder than standard fillers - but also more diffcult to work.