hi i am 46 male live up state ny. i want to build a 30'x32'x14' pole garage. for working on my projects my son and i. i am not a carpenter i was wondering,i can get 6"x6"x18' hemlock from a mill here 433.54 for 17 poles . the home centers want 1,380 for pt i love the pt for how it last. but have a small budget just want to get what i can done this summer and then floor and wiring next year what can i use for the bottoms of the post tar? or something like that 4' in ground please help . thanks.