Looks good to me!
I learned about the limitations of the basic "Hardey-Spicer" type of UJ when I owned a Triumph Spitfire Mk3 in the 1970s. This type of car has a UJ each side of the fixed differential housing to solid wheel driveshafts on a single transverse spring "swing axle" rear suspension. Each driveshaft runs to a fixed "right angled" wheel bearing.
They should have designed in a second UJ at the wheel end (GT6's did have a second one). The vibrations caused by the driveshafts accelerating and decelerating as they rotated were noticeable right through the car as soon as slight wear took place in the needle roller bearings in the UJs. I kept the car three years and changed so many UJs I could do it in 45 minutes even though it involved stripping the entire rear suspension.