If I'm not mistaken, we can't really use the mobility kit and sealant on RFTs, can we? Also, say if I wanted to have the hole patched from the inside, which specialist tyre shop would you recommend and how much would it cost? I bet it may cost a bit more if we actually send it back to the BMW service center. Also, nitrogen is an interesting concept which I've never heard of. Which shop can you get that done at?
Even though RFTs are more expensive, I reckon that extra number of kiliometers that you can use the car can really make a difference between being mugged, robbed or being home safely. Especially, if the tire punctures on a lonely stretch of road!