Perpetual 2nd Time Taco Owner - 2.7 or 4.0?

thinking of coming back into the tacoma territory

first one was a 08 double cab trd prerunner i bought new, after some job changes, commutes, etc i got rid of it and now with my new work style, i need a truck to commute in.
i drive roughly 300-350 miles per week mixed (im a dealer vendor so im going to 3-5 dealerships each day) and definatley need a pickup bed.
im thinking an access cab is perfect for what i need, i just cant figure out whether to go with the 2.7 5 speed or 4.0 auto?
power isnt that big of a deal which leans me toward the 4 banger but ive been reading that the two are pretty equal in MPGs. i remember my 08 avging 19-21 pretty consistently.

opinions/feedback?

 

V6 for resale.