Ok, it's a bit different on a chopped car as there isn't much window to run up and down in the channels if you use the existing winders.
It can go up wonky etc.
When I fitted glass doors i found some back door winders from a Mondeo that uses a central runner so it can't go astray.
They have a curve and need flattening. :tup:
They even have the same fitting for the old chrome winders.
BUT protude out the door panel an extra inch so you may need deep buttoned velvet panels. :smoke:
My glass doors had the chrome strip finisher shape/bulge built in round the window aperture.
Was also a kind of overlap join during manufacture in the laid up glass on the front of one and has sunk a tad.