I have worked for an Irrigation company.
Firstoff, soaker hose is total crap.
second, dont do it yourself unless you want to pay someone an arm & leg to come fix it when your water bill is sky high because of shifting dirt breaks your lines.
third, make sure you use high quality valves and controllers if you plan to make it automatic. (toro 1" "old style, flow controll" valves) (toro or hunter controller)
fourth, use good drip irrigation with emitters, not just holes drilled it a tube.
Or, just call a sprinkler co and have them do it when you decide to get a lawn sprinkler