Project management question need in a hour or less

You are a project manager at a bike shop. You just received a shipment of new bikes that need to be assembled. For each bike, the frame needs to be set, which includes the bike frame, handle bars, and the seat. The wheels need to be mounted. The braking system needs to be installed. Before a bike can be sold, it needs to be tested by the quality team and road tested. You have assembled your team of experts and they are anxious to get started. 

Part 1: To ensure you have a clear scope for your team, create a 2-level WBS. Don’t forget to include your WBS numbering. 

Part 2: In your WBS, how many work packages have been created?