Sheet metal template?

heres what i did!

1) I taped off the opposite panel which I was using as a reference.
2) I then placed tin foil over the area and shaped it too form.
3) outlined the cut off area from the tape to the foil
4) cut out the foil template, placed to poster board paper
5)cut out, created template, a couple ours of cutting, smoothing bending, hammer and dolly, and then done!

All I need to do know is grind my welds, body filler and boom!