Yes, just a day sailor.
I found the book on Amazon so I'll definitely order it and give it a good read.
This wire is about $90 for 100ft of 12awg triplex wire. https://www.amazon.com/Ancor-Marine-Grade-Duplex-Cables/dp/B000NV2AVS
And would a single 100Ah battery like this one be sufficient with a 50W solar panel for what I'm trying to do? https://www.amazon.com/Universal-UB121000-45978-100AH-Cycle-Battery/dp/B00S1RT58C/
Blue Sea Systems 12 Volt Dash Socket - $8.99
Blue Sea Systems m-Series Battery Switch - $34.62
Smartlive LED String lights DC 12V 10m 33feet 100 LEDS,Warm White - $9.99
DROK Digital Multimeter DC 6.5-100V 100A Voltage Amperage Power Energy Meter - $17.89
ISWEES Dual USB Car Cigarette Lighter Socket Splitter 12V Car Charger - $11.89
Blue Sea Systems ST Blade Fuse Block - 12 Circuits with Negative Bus & Cover - $37.24
BEP Digital Voltage Sensing Relay (DVSR) 12/24V - $78.46
BESTEK 400W Power Inverter DC 12V to AC 110V Car Adapter with 5A 4 USB Charging Ports -$35.99
UB121000 12V AGM Battery 100AH - $125.21 + $34.69 Shipping = $159.90