Shouldn't be a problem. Like you mentioned, just keep an eye on the wattage load on that circuit. It may be necessary to enlarge the hole in the canopy to accommodate the two wires, but other than that and the wattage there shouldn't be any other issues with hanging them the way you describe.

Are you an electrician?

Yes.

Regarding the wattages of the fixtures, if you're planning on using LED bulbs I wouldn't even concern myself with the power draw. Most LED bulbs (60 watt incandescent equivalent or less) use 10 watts or less. Candelabra LEDs are typically 5 watts. However, if you are planning on dimming them you'll need LED dimmable bulbs and an LED compatible dimmer, all readily available.

Thanks this is a big help, now I can buy the fixtures! Hope when it comes time to install the lights, my electrician feels as you do!