I found these heads on CL. A guy had a 390 and wanted to sell all but he block. I offered him $40 for the driver side head. He said sure. While I was there pulling it off, he said he'd throw in the other head for $20 more. Good salesman...
Here is the block and intake cleaned up and painted:
Waiting for the engine gasket set and the timing set to come in. Then it will be time to assemble.