First, I would not say speed is irrelevent. it sucks going dead slow when there is a 6 k breeze and you'd rather sail than motor.
Second, do you really need a mainsail furler on a small boat like that? I do not know the answer. Just asking because it would seem the sail is fairly small and fairly easy to handle from the cockpit. But I won't make any assumptions.
Third, I do have an after mast furler and like it because it keeps me off the foredeck in pitching seas (hopefully). They do require more dilligence regarding maintenance, the sail has to be cut flatter and when the sail starts to bag it needs to go in for re-cutting sooner.