YOU SHOULD GET TWO OF THESE AS THEY ARE VERY CHEAP https://www.bimblesolar.com/410w-canadian-solar-panel-great-size?tracking=590efad7b3ead
40A 12V-24V-48V MPPT charge Controller – EPever XTRA 4415N – 150VOC PV – LCD Meter – 48V Model
https://www.bimblesolar.com/40a-mppt-48v-epsolar?tracking=590efad7b3ead but it needs a cable or screen to set the lip04 setting
Think it’s this one, but need to check https://www.bimblesolar.com/mt75?tracking=590efad7b3ead
To join the two panels https://www.bimblesolar.com/STAUBLI-SPLITTER?tracking=590efad7b3ead
Then need cable from charge controller to batteries, 6mm should do this.
OK might be missing some small bit but this should work