That is a generous offer, thanks. I'll let you know if it comes to that. As a related aside, I've made irrigation repairs at many of these national chain fast food joints. I always find shallow high voltage conduit for lights and drive thru signs. Usually 4 inches or so deep and most of the time jammed up against the curbs. I do not know how they got that originally passed for code inspections. So, I doubt the GC will want this buried very deep. It's his responsibility what he puts inside the conduit. Also, I'd hate to try to remove the already installed blade, it's been in one position for years!