Around this same time I was helping out a friend with his 70 SS 454 Chevelle.
The car had previous damage on one door that was poorly repaired.... and it bugged him bad. I stripped and bodyworked a (very solid) door for him which he sent out for paint and returned to me for polishing
Sanding and Polishing time start to finish for this door was about 8-10 hours.
By comparison, a Green Bastard door probably took me 30+ hours !!
Only mistake... Forgot to screw in a mirror base for final blocking... when we attached the mirror it made a slight wiggle in the area directly below the base