So Sunday I spent 5 hours drilling holes. In fact, this was a colossal squandering of time. But I did get all these bolts in. 1/2" and 5/8" holes are a piece of cake once you buy $350 worth of drills and drill bits. I actually enjoy drilling holes now. My old 3/8" chuck drill was unable to make holes of this size, and I decided I didn't trust my welding so bolting was a must. The reason it took so long was because I had to buy the bolts and then experiment with the drill, rearrange the pallet racks, and line everything up. Also I needed to bs with the CORE members and escape the relentless 75 degree heat and sun. And buy bolts from Home Depot. Remaining bolts will be purchased from a reputable bolt seller, and not garbage grade bolts. But frankly with 5/8" bolts the low grade will work. I can say this without any reservations since I have a master's degree in mechanical engineering. Trust me, a 5/8" bolt will handle these loads! Oh, and I concluded that I'm crazy. I can't even explain why I'm doing this anymore... I should be committed. Nonetheless, this will be finished.