Getting close to pulling the engine, so I picked up a two ton shop crane and engine leveler that was on sale. The leveler has "L" brackets on the end of the chains so I started to see what was required to attach these to the engine. @Racer Xposted pictures of the OEM lifting brackets so that was my starting point. Here is what the OEM's look like:
After reviewing this I thought it made sense, on the front mount, to attach the leveler "L" bracket at the OEM location, and to use both of the two M8 holes that the OEM bracket used. So I took some measurements and made a sketch to fab a small angle to pickup the second bolt. Right after I finished the sketch I had a light bulb moment, thinking "Hey, I have an old spare engine in my shed". It's from a December 1970 parts car I picked and stripped over 30 years ago. To my amazement, it still had an original early single bolt front lifting bracket. It had no rear bracket, but it won't be to difficult to use one of the "L" brackets back there.
Here is that sketch I made for those who might be interested, with the OEM bracket after I cleaned it up a bit.