First be sure to put a fuse at the battery on the positive lead. Probably a 45 to 50 amp resettable one is best. I would definitely put a plug up front. You may have occasions to remove the motor for service or security reasons. I put one of the quick disconnect mounting pods on mine. I can take mine off in about a minute, but it does have a lock on it. This simplifies installation as well. There are two types. Mine is a solid pod that mounts to the deck and the mating part mounts to the motor. It is made by Minnkota for this motor.
The 2nd type, which didn't exist when I bought my motor is a sliding bracket. The motor sticks out over the bow and can be damaged when docking if not careful plus if you use a cover it has to accommodate the motor hanging out over the bow unless you have the sliding bracket.