Bakery assets include:
7 loaves of bread (1 colorable)
A basket of bread
A bread oven
A chimney for the bread oven (for upper floors and roofs)
A bread peel
2 Knives
and a rolling pin.

Mill assets include:
A bundle of wheat
A millstone (enclosed with hopper and chute)
A set of gears (to connect the water wheel to the millstone)
A water wheel
2 axle parts for flexibility
A scythe
A sickle
A thresher

The water wheel and the gears are separate so you can position them where you need them. The horizontal axle is included in case you need a greater distance for the gears, the vertical axle is included if you want multiple floors up to the millstone portion of the machine.