I finally bought a ceramic 8086-1 (from ebay, from China - I'm not sure that it is not fake chip) and 8284 (it make the necessary synchronization signal for the processor from the crystal).
Now I want to check if it works - just run through part of the address space on the LEDs. I don’t know what frequency of the crystal to set so that a person can see how the addresses change and whether the processor will work at such a low frequency? As an option, use circuit in which one processor cycle is performed at the click of a button.
Does anyone have such circuit? I saw such for the Z-80.