That’s the most important bit of fitting new door skins.
Before fixating the skin to the door frame fit it to the car to check the panel gaps.
Also check the skin itself after fitting, they usually need some rectification to get the smooth.
This is best done before paint preparations ...
Otherwise pretty straight forward, and not too time consuming.
As long as you know what you are doing and have the proper tools.
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<font color="blue"><i>1980 TR7 DHC (my first car, now restored and back on the road)
1981 TR7 FHC Sprint (better known as 't Kreng)</font id="blue">
<b>[url="http://www.tr7beans.blogspot.com/"]<u><b><font size="3"><font color="red">My full Weblog</font id="red"></font id="size3"></b></u>[/url]</b></i></center>