Just thinking reasonably. You bought a used product with some defects and didn’t check whether a replacement was available before the purchase, right? I would be frustrated also and that I can understand because I may feel that way also. However, looking at it from the manufacturers point of view, I would say for being successful in that industry means continuing to develop a more advanced sled and or shelter. I am sure they try to keep past customers happy but not at the sacrifice of not producing new products. In many cases, businesses do not like to carry a large amount of inventory and I would imagine that is the case for a manufacturer like Eskimo. How much building storage would you think they have for past and new inventory?
I have Eskimo shelters and all have held up pretty well. I actually have an Eskimo QuickFlip II which also has a few very small holes in the front of the sled. But after 6+ years on what was a $200-250 package, I think that is pretty good.
I do hope you find a cheap solution and that it works out for you. Keep looking for someone that may have just the sled on craigslist. Also please share if it works out, because I would like to do a quick patch on mine.
Good luck!!