PV Array Tower made from Utility Poles

Would anyone have a 4-legged (or 3-legged) tower design for a PV array made from utility poles?  I'm in an area that is heavily wooded with red pine and have issues with shadowing.  My current array has two panels and is pole mounted roughly 30-feet off the ground.  Taking in consideration the predominant winds of the area, going up another 20-feet will need something more stable than a single pole and I would like to increase the number of panels.  Having my array moved to 50/60-feet above the ground will almost double daily exposure to the sun.  Ive dug around the forum and most information I've found is either a repurposed fire watch tower, or towers for wind turbines, and neither will quite work.  Any help would be greatly appreciated.