Thanks for the opinions guys.
I'll try the arcadevga route and go from there.
Cabinet is in fair shape. No damage, just needs repainting.
Nice over/under coindoor, needs keys.
If I can get this monitor going, I'll make it a horizontal Mame cab.
Otherwise, I have a decased 19 inch monitor without a home and maybe I'll try to get it in there and make it a vertical monitor for the classics.
Thx again,
-Dweebs