I reached under and got one bolt int each hinge to finger-tight. I then lifted the hood and got the other two bolts finger tight. I removed the blankets and carefully laid the hood down. It had good clearance on all sides so I lifted it gently to avoid moving the bolt position, then snugged up all bolts with a socket wrench. I laid the hood down again and centered the hood, making all of the gaps even. I lifted the hood and tightened all bolts down hard. I laid the hood down and the gaps were perfect!
I cleaned the hood with detailer and it looks fantastic. The only problem is I don't have an upper hood latch. I went back to my pictures and found that the latch went with the hood to the body shop, so I assume it's long gone now, along with the rear hinges. I searched around the web and found one on sale on eBay for $5, so I snapped it up. I'll clean it and bolt it into place when it arrives next week.