MacIntosh computer questions

In college I used a 1993 model performa 6115. While shipping it home two years ago the monitor was destroyed. So it’s been sitting on my floor now for over 20 months, I have no idea if it even works or not, and there’s no way to test it out.
The reason why is my monitor seems to have been built in the bizarro world of MacIntoshs and was the only one of its kind to fit into my computer. The holes in the back are five levels of 11, 7, 9, 7, 11.

So my questions are these:
Where can I find a monitor to fit into this computer? How much would that cost?
I have heard that there is an adapter between my monitor slot and the normal monitors of Macs. So far I haven’t been able to find it. Does it even exist? How much would that cost?


You can connect almost any VGA monitor to your mac, with an adapter. Try these guys for the adapter:

Should cost you under $30