I meant to continue and kill Findarin (this could drag on for a while), but when I sent the game to myself after about 3 turns later, I get black screen, waiting for independents to move, and everytime I reload, I'm sending the game to myself. That's why I didn't post any information.
It would probably be difficult to deal with death storms if I continued, but Findarin always cast it on my cities (which had sanctuary), so maybe I could just walk in with my 10 phoenixes and 8 Kharaghs and capture city after city. I had a good income and troll factories as well, including a teleporter.
On my side of the map, I felt quite safe actually and didn't fight against Findarin until much later because I didn't create tunnels until much later and I don't think Findarin could create tunnels himself. I decided against creating tunnels, after seeing 4 independent Kharaghs right next to my captial.