Here you go:
15 x 30 x 7 - x1 - Output shaft, sprocket side
25 x 40 x 7 - x1 - output shaft, rear pulley side
16 x 24 x 4 - x2 - pedal shaft
16 x 28 x 7 - x2 - crankshaft seals option 1
17 x 28 x 6 - x2 - Crankshaft seals option 2
12 x 18 x 3 - x1- pedal engagement seal
So you don't need the 16x28x7. You also probably don't need the 12x18x3 as it sits on top of the case so it's not really doing much.
Also, check if your rear sprocket is held on with a circlip or nut and lock washer. If its a clip you're good but if it's a nut you'll need a 20x30x7 as there is an additional spacer that sits behind the sprocket.(edited)