Hopefully it’s the other way round - the one top left going to the coil (an unfused ignition live) and the one top right going to Rev counter power feed (a fused ignition live)
Correct - it is the other way round. Red wire goes to coil and green goes to the rev counter.
Do I put the rev counter illumination wire to bottom right of fuse box?
Yes. If in doubt, check that terminal with a multimeter or even a test lamp