You say you want to end your listings, - but as I do not see any listings showing, perhaps that worked itself out?
You say you deleted your selling items by accident, . . . hmmm, contradicts your first query, doesn't it. 😄
As for the fees, you will have to pay listing fees for having listed the items, but you will not have to pay final value fees if the vehicle did not sell. Here is a link to tell you about fees:
http://pages.ebay.ca/help/sell/fees.html
I must say, I was wondering how you'd planned to mail that as a 'regular parcel'. :^O