Dent and crease removal with MAPP gas?

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Can you use MAPP gas to remove a nasty crease in a fender? See attachments.

My fender was bent backwards, which left a deep crease. I wondered if I could use a Berzomatic MAPP gas torch to heat it up and bang it back into shape.

I do not have oxy acetylene, or a dolly, or any professional tools.

The fender is a Frankenstein already. It is welded and built up with inches of body filler. A real mess. But so is the rest of the truck. Patch panels, ugly welds, wrong parts, farmer fixes all throughout. It will not win any judging awards. So I'm not worried about ruining it. But do want to try my best, and do a good job.

Can you suggest any techniques except throw it over a cliff and get another?

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