nedj10 ~~ "1) the oil plug according to google should have been a 14mm, mine was a SAE 1/2 measured with a caliper to be sure. Is this normal?"

No this is not normal. The factory plug will take a 13mm socket to unscrew, and the original plug is torqued to 30 nm = 22 ft lbs. If you actually have a 1/2' SAE plug then someone has probably over torqued the plug and stripped the original threads. They then either forced a half inch bolt into the hole or they installed a heli-coil thread replacement. There should be a crush washer under the head of the drain plug. Not having seen your car and exactly what is going on with that drain plug I suggest if your plug is not leaking you seriously consider changing your oil from the top; Put a vacuum tube down the dipstick tube and suction the oil up and out of the engine. I use a mytivac, but there are other devices that can be used. I checked the first time I replaced oil with the mityvac and there remained in the oil pan only about one tablespoon of oil in the pan. Changing oil from the top will prevent any further damage to the plug and or the threaded hole. If it has been heli-coild you probably are okay.

Here is a link to where the o-rings are placed. See picture at post #3 AND do not try to force the stock/stem of the plastic apart. It probably will not separate so just replace four not all five: o-rings

The torque for the oil filter black plastic top is imprinted on the cap.

In the future before diving into maintenance or repair on your Crossfire check the forum first.