When the hinge on the UPVC door broke I tried to replace with the same style hinge but found it incredibly difficult to match, so found a great upgrade to the new style flag hinges it works a treat
Amazon link, https://amzn.to/2LjoliJ
Also these wind bags are a great way to hold the door to make fitting much easier https://amzn.to/31RQxSw
Hinge fixing Self tapping screws https://amzn.to/3qm43gx