Support assemblies for watercrafts and related methods of assembly

A watercraft comprising:

• a hull comprising a rightward slot to receive a rightward support device and a leftward slot to receive a leftward support device;
• an opening extending vertically through the hull, the hull at least partially defining the opening;
• and
• a support assembly configured to mount a propulsion mechanism to the watercraft, wherein the support assembly comprises:
• the rightward support device attached to the hull, positioned between a forward portion of the opening and a rearward portion of the opening, and at least partially defining a right lateral portion of the opening, and
• the leftward support device attached to the hull, positioned between the forward portion of the opening and the rearward portion of the opening, and at least partially defining a left lateral portion of the opening.