BBC 2wd engine mounts

[eric8]

Trying to get a definitive answer on doing a BBC swap on an original small block equipped 77 C10 (2wd). Doing a search on this topic has left me even more confused. Some have installed a big block using all the original small block mount components and say everything fits fine. Others say the engine will not sit properly if you go this route.
So long story short, what items in the following pic are big block specific? I’m trying to get part numbers on exactly what I need to search for to make this swap. It’s my understanding that there are no aftermarket mount solutions to make the big block swap for the 73-87 platform, so junkyard parts are the only option short of fabbing up your own mounts.