Recent purchase of a 440 lagoon and looking into solar, you have a very nice set up. Are those Sunpower Cells? Can you tell me what you paid, I have one quote for the X20 cells at $970 for 250 watt panel and $1450 for the 345 watt X21 panel. The LG Panels for 315 watt are being quoted at $371. Just wondering if the price difference is worth it and if this quote is way to high? Thanks: S/V BlackSheep