kitchen countertop, light / fan

I must figure out how to cut this thing to length at 45° and still make it look seamless. 

In the mean time, the kitchen needs a light and fan.  The old one was apparently not that old – only about 3 years.  But all the screws and things were lost – probably swept up – so it must be replaced.  The light wiring is now 3-way with a switch in the hallway and another at the mudroom door.  The fan is on its own switch in the hallway.