I did mine myself, trailer, deck an in my storage boxes, wasn’t that difficult
I just installed Bluewater LED kits for the trailer, deck, rod lockers, 4 storage compartments and live wells. Very likely "Theroofingguy" is much better at this than me. Some elements were not too hard...like the trailer wiring. However, the deck lighting was very tricky. The rod locker and storage compartment was less tricky, but not what I would call "easy". Connecting them, powering them, physically installing them....sure that's easy. Routing the wires through the boat to make the installation look invisible. Depending on your boat, this might be the tricky part.