Default Powermat parts in the QI back?

I have the original back, the Quick Circle cover, and the Powermat Quick Circle Cover.

I like the wireless charging, but sometimes, I want the QC cover gone. It's annoying to have the flap while playing games, etc.

I know that the original back is a little tight. Can I buy a QI cover off of ebay, remove the QI sticker, and replace with a PMA sticker, with enough space?

Thanks in advance,
AT&T LG G3, rooted, waiting for ROMs.

Coming from Blue Angel, 8125, 8525, Tilt, Fuze, Tilt2, iPhone 3G, iPhone 3GS, Droid, Eris, Incredible, iPhone 4, HTC Inspire 4G, iPhone 4S,
HTC One X, iPhone 5, Galaxy Note 3, iPhone 5s, and LG G3
Modded what I could, fixed what I could, used them as much as possible.