You'll need someone to sit back there and find it. It was easy for me to get at my problem after someone confirmed it was coming from where I thought it was.
Being a convertible meant I could just open the top and have access from above down the hole. You'd have to take out the side plastic next...
I am willing to ship but if I ship with Fastenal on a pallet it would be about $250 I believe and they will ship to your nearest Fastenal location for you to pick up.
Would you like me to check what it would cost for UPS or Fedex?