Yeah, that is pretty thick to bend without a little bit of equipment. Sounds like this is a forward hatch replacement?
It is still quite doable as a DIY job, but takes some setup that you probably don't want to do for a single one-off job. Sounds like you've already pretty much figured that out and that's why you're looking for a shop.
If you do decide to have a go yourself, I can tell you exactly how to do it. But, it is a lot of work for just the one job.