I must have missed this. If you are referring to the battery setup I'd say $800ish. Rounding here but $250 for the battery, $250 for the isolator, $100 for cables, $30 for terminals,and the rest for circuit breaker, fuse box, relays,etc. I was quoted $1200 from a shop not including the battery. Im sure I spent more than the $800 because I ordered the wrong cables first and couldn't return them. I also had some trial and error that cost me return shipping. But after the fact I could easily get the basic setup for under $800.
Sent from my Pixel XL using Tapatalk. My build thread: http://www.gm-trucks.com/forums/topic/192614-tenscourts-2016-ltzz71-ccsb-4wd-silverado/