Have the same motor in Louise Michel. Took out an old Gray Marine inboard that came with boat. What a nasty job that was. Haven't regretted it once. Have about a thousand hours on the engine, including an eight month trip to Bahamas -Norfolk to Miami, down the ICW, eight hours a day, day after day, that little motor ran like a top.
I have the charging system but haven't used it. Instead we use a 80W solar panel mounted on a raised stern pulpit, with a 15A contoller and two 90AH deep cycle batteries. Powers cabin lights [ some incandescent, some led], running lights when needed, VHF [not always on], GPS. Run laptop, battery chargers [AA, cordless drill etc] and FM radio via a small inverter. Anchor light is a rechargeable lantern hung on boom.
Doubt you'd be able to power all the items you list, about what I have, from engine charger without running it just to recharge batteries but you have to do the math...add up all the items times hours of use, figure in the formulas for inefficiencies, rate of discharge etc.