Microwave/Stove/Cooler Question

DISCLAIMER FOR PEOPLE WHO SKIM: I am not buying or taking this stuff with me when I go with my trainer for 4-6 weeks this is just the planning stage.

Well I'm concerned that I might pick up something that would not work in my truck due to amps / voltage requirements and wanted to run my list by some "pro's" and see if they see any issues or have any better suggestions for me.

I am going to work for USA truck and my understanding is that converters are a big no no. So keeping that in mind everything is 12V however I am concerned about the microwave requiring a 20 amp system and not knowing much about trucks not sure if that's available.

Portable Microwave:

http://www.walmart.com/ip/WaveBox-P...0000003260370&ci_src=14110944&ci_sku=12510034

Portable stove:

http://www.amazon.com/Max-Burton-Stove-To-Go/dp/B000G6S8Z2/ref=pd_sim_dbs_k_15

Portable Cooler:

http://koolatrononline.stores.yahoo.net/koolatron-p75-kool-kaddy.html