DC Electrical Engineer to Help Develop Solar Trickle Charge EV

I’m looking for an electrical engineer to help specify components for existing LiFePO4 battery system (electric boat). I am adding a solar trickle charge solution to the boat. Presently the boat only recharges via line power. I need to spec the parts require to solar charge (trickle charge) the 110AH 48V LiFePO4 battery bank. I would like help with the solar trickle charge system only at present. Important that I buy the correct parts and assemble the system properly. The idea is to allow the boat to slowly recharge the batteries with sunlight while the boat sits unused on the dock.

Please see attached receipt fo the parts that presently comprise the system you would be improving.