Turning a rotor usually makes it more prone to warping so unless it is scored badly, I wouldn't recommend it. And if you have to replace them, got with something other than stock.

Check your fluid and if it is anything other than clear, it's time to flush it to prevent damage to the entire brake system, especially the ABS module.

Don't forget to lubricate the 2 quide pins when you reattach the calipers - if those pins gum up, the caliper will not float back and forth and typically wears out one of the pads well before the other. Use caliper grease than can withstand the high temp.

Pad change shouldn't take you more than about 30 minutes a wheel with 2 wrenches (and a hammer as they are in tight), a prybar or c-clamp to push the pistons back in and patience - it's pretty straight forward.