How can I replace imperfect boxes for my Gmaecube games that I USE (but have in perfect condition)?

Well, a few of my boxes have uneven film (that holds the paper slip in) on the front or back, or has small dents in it from when I got it. I thought nothing of it at the time, as I thought "I can always replace it". Well, a while back I went to a lot of trouble of ordering some Gamecube boxes from Nintendo of America through someone in the States (I am in UK), which worked out to a lot of money. I buy imports you see, and the Euro/UK boxes are different.

Anyway, they were no good - they all had scuff marks on them! So now, as the new GC games are dying out I wonder what I can do to replenish the 5 or so imperfect boxes that I have?

I toyed with looking for new, sealed and cheap games on eBay.com but I run the risk of buying games that could have small dents in the boxes anyhow and once unsealed I'll have to try and sell them to make some money back which will probably be very hard as they'll be unsealed ten-a-penny games!

Any ideas guys?