I am close to signing to install all new sod and an irrigation system on a 4500sf project. I haven't installed systems before but have an ex-LCO man who moved here from CA who has years of experience with irrigation that I found on craigslist who will be helping. I bid $7k for the project and want to know if anyone has a feeling on appropriate compensation for the irr. help considering his expertise? 3 zones, 134 total heads. Thanks in advance.