But, the Apex II won't work. I wouldn't suggest a white gas stove for in-tent use anyway, due to the risk of spilling fuel. Plus there are issues concerning the gear needed to hang the stove, none of which will fit the Apex. MSR makes a hanging stove kit that comes with their Superfly stove - which uses a butane/propane cartridge - a heat exchanger and the hanging hardware ($79). And Bibler sells a $58 kit that includes a pot, windscreen, and hanging gear and that will fit most cartridge-fuel stoves on the market.
In general, hanging stoves are used by the extreme-alpinist set, people in small tents pitched in tight places where the weather is really, really bad. For the majority of campers, I can't recommend their use. ANY cooking inside of a tent comes with severe risks of carbon monoxide poisoning. Better, I think, to camp in a tent with a hooped vestibule, and use that vestibule (with some zippers undone for venting) as the camp "kitchen" if your forced indoors by bad weather or extreme cold.