Need HELP buying new truck both 07 T600vs 386

Hello i been driving for 8 years and buy truck was involved in an accident and was total i was not at fault and got pay for it i had a 1994 kw with 97 detroid 500 60 series 13 spd 3.85 . Fuel econo heavy 6.8-7 light 7.5-7.8 . Ok now need to buy a new truck something good that will last and will not break as much i ride dry/53" california to east coast and back . Been looking at the KW T600 and the 386 pete both 2007 i think the best option engine will be CAT since they have a few that go to 900,000 miles tranny is the least of my concerns will get a 13 sp later on what you guys think ?????? Kw t600 vs 386 both cat both 2007 epa edmisson comply kw has 890000 pete has 704000 ? I do a lot of my own work on truck airbags breaks ect ? Help me choose and send me in the right direction plz thanks u god bless

 

ARB law states that 2007 -2009 are in compliance to 2023 that give me about 9 years to upgrade again to 2010 or later model I hate this law but is you do it or dont ride calif starting next year .

 

Ok in that case i will go 08 T660 or 386 pete

 

Ok still what u guys think T660 or 386 pete
both runing CAT wich one will u pick

 

Ok if i go the cummins route i have ask many company drivers and they all say is shxt no offense
i heard the turbo goes bad and that alone is 5000 to replace also heard the engine dont last long 600,000 to 750,000 if ur lucky like me i guess ????
I just dont want to buy a nightmare truck from hell thats gona burn the little money i make braking
down all the time ???