No problem....
You can see the
stock hinges thru the gap between the tail gate and the tail light.
In this pic you can see where the stock hinges are bolted to the tail light housing. Shims were added as needed to get the latch end of the tail gate to line up correctly.
Here you can see the stock hinges welded to a reinforcing plate which is also welded to the end of the tailgate.
Just be careful how far you open the tailgate as it will hit the taillight if you go to far.