Best heaters for the winter?

Hey team - I'm debating whether to put any combination of a block heater/oil pan heater/battery warmer or charger on my truck this winter. It's a 2008 4-cylinder manual 4x4. I'll be storing it in Anchorage from mid october to late February. It will be in the Glennallen/McCarthy/Valdez areas from late February and into the summer.

If I decide to install the heaters, what issues have others ran into? Any recommended brands or brands I should avoid? Thanks!

 

I have Kat's heating pads on the oil pans, Kat's heating blankets around the batteries and Zerostart block heaters on all my vehicles. I have them set on a timer to come on usually 2-3hrs before I want to leave the house and they stay plugged in at work the whole time. I have had no issues starting even close to -40°.