LED lights, just add a rectifier. No need for any other bullshit. You DO NOT need a battery
I've been using this one on my snowmobile for 7 years with a RIGID light bar. https://www.amazon.ca/Universal-Snowmobile-Rectifier-Converts-Voltage/dp/B012H2HSBC
As for a turbo. PM @ SKEETER he owns Trick Racing who builds turbos and superchargers for banshees.