On posting images:
I'm curious why you wouldn't choose the plants first, and then adjust the light to the levels they need. Also, you say 'viv', implying there will be animals in there. Most animals we tend to keep in vivs prefer subdued lighting.
On the coffee plant: tip browning on plants usually indicates something other than lighting issues (water/humidity issues, often). A pic would help make suggestions for that plant, too, I suppose.