Wow I am so sorry that he had both go out at the same time!! The cost is intense but glad you have insurance, and kind of glad they both went at the same time. If one goes its almost 100% that the other will go sometime soon after, so even though it sucks for him now its probably best..

Poor boy though, I cant believe that happened in such a young dog too.. I would be looking at the breeder and make sure you tell them if you got him from a breeder..

Hope he heals as fast as he can and get to live a decent life for many many more years!!