You've got all the engineering for construction, now how 'bout a mix-design for your concrete?
If you do not have freeze/thaw issues I'd go with non air-entrained, 3,000 psi mix, 8" slump for the pillars, 4"-5" slump for the footings, and 'bout a .45 water/cement ratio. 25% pozzolins to reduce cost, and help workability.
If you do have freeze/thaw issues, go with an air-entrained 3,500 PSI, with the same characteristics as above.
My two-cents.
