I do have room for bigger tires, but I'm going to start with the axle flip. Bigger tires alone aren't going to provide enough lift, so I figure I'll do the flip and then evaluate from there whether to also go to a larger tire size.
The only debate now is whether to buy the parts and do the job myself or have a shop do it for me. I enjoy wrenching on things and it looks like a pretty easy job, but time is always short between work, kids and all the different activities that seem to go on all the time. Luckily it's January so I have some time to get it figured out.