It's tough to see (I saved & blew up the picture), but it doesn't look like the wire holes are there. If not, the wires will have to be run on the outside as they are damn hard to drill. There's not much time to ask and get an answer, but it's worth a try.
Handlebars show up often, so if you're not in a rush keep a look out. I snagged a set of stock "72 CB550" bars (go figure, the 550 came out in '74 - I must have gotten a set of 550 sandcast bars) for $5. Of course, my shipping was $10, this one calcs to $4.