Bah, would have tossed the monitor and put in something hi-res first of all. Original monitors require DOS. DOS is ancient and evil. I vowed I shall never run DOS again when I first started up Windows 95 on partition 1 and Linux on partition 2 many moons ago.
Then perhaps a J-Pac for the controls existing, and an I-Pac for some additional buttons.
But that's just me.