With that combo, and the weight you are mentioning, getting on plane should be doable. However it would be marginal, and a small amount of additional weight could make all the difference between getting on plane and not. If you can find and manage a more powerful motor, you will have a lot more leeway, and not need to add up every ounce of cargo (and inquire of your passenger's weight
) before setting out.
With a +4m boat, a trailer will make things much more safe and convenient, rather than assembling & disassembling with each use.
If you plan to assemble and disassemble each time, then having a van or pick up truck with a small hand crane, launching wheels (or launching dolly), and a good electric pump would make the assembly/disassembly far more pleasant and safe.