Looking at the parts diagram, it looks like you have the correct spacer, then washer, order.
After you install the freewheel, and then the first gear, the gear should spin free when rotated clockwise. Does it?
I would have to guess that, if there is a problem, it is with the freewheel.
The manual states to first install the freewheel, then use the tool to hold the springs and catches in place while you slide the first gear on. It doesn't say to slide them on together...don't know if that makes a difference, but there must be some reason for doing one then the other and not together.