While I completely understand if you would want to keep your car completely stock, would you consider getting rid of that whole system? It's only used to pump additional air into your exhaust, which lowers your emissions.
That being said, a LOT of people like to delete them. The parts to fix them are very expensive and takes time to fix. It's worth looking into deleting them if you are sick of the CEL. You just need to source a block off plate and find someone to delete your code for you.
You also should be fine going through emissions, as you will still retain your stock catalytic converters.
I very much doubt if anyone is going to have issues with it being deleted from the car. You can always include the part in the sale if you should feel inclined!