I'm risking to appear as the computer equivalent of the crazy cat lady here, but I think I'm in good company
I had another Apple II clone mainboard lying around, it has the Z80 integrated on the mainboard ... but nothing ROM like appears there. The video card bundled with it is the now familiar AP16 from IBS, but it has an EPROM in the socket that's empty on the one from the SPACE84 clone. Unknown Apple II clone
So I fear that board's useless without the proper ROM daughter card.