Do what you thought of and set up an indirect cook. All ribs one side, burner lit on the other. If you have a way to check cooking temp, try to get around the 275 mark. Also, if you have wood chips handy, wrap a couple handfuls in a foil pouch. Poke some holes in it and put it on over the lit burner when the ribs go one. I wouldn't worry too much about foiling the ribs with anything fancy. Just get the ribs done and try to get a little smoke on them. If you want to try to add more "bbq" flavor, wrap the ribs with a splash of bbq sauce for 30 to 45 minutes.
Hope that gives you something to start with. Good luck!
Edit: Seems like Ron the Mod beat me to it!