Shenango 5-31

Headin up tomorrow with my dad who hasn't fished in 5+ years.  We will be after crappie with minnies and floating/lead jigs.  I've never fished in Shenango from our boat, but know the lake well as we go there a lot once the water is warm enough to swim and ski in.  Not looking for anyones personal woodpile or anything, but wandering what depths and general areas of the lake would be a good starting point to get him on some fish?  Also, where is the nearest bait store if we are coming from 79?  Thanks in advance..... -BW