V Ate My Jungle and Home

TLDR – Crimson V spawned directly on top of the tiny Jungle biome in my large world. Game over or nah?

This is my first time really getting into the game, and my brother and I have been playing for a while. I knew that beating the Wall of Flesh takes the game into hardmode, making the evil biomes spread faster and making the V shape. I wanted to contain this so I spent what felt like hundreds of gold on dynamite and made hellevators on either side of the two Crimson biomes. I knew the V would happen but I figured I'd deal with that once hardmode hit and excavate around those too.
A little precursor, the Jungle biome in this large world were playing on sucked. Only two living trees and it was pretty small to begin with.
So, we beat the Wall of Flesh, but my brother dies in the middle of it and as I'm collecting all the loot, I hear him say, "The trees and grass are all colorful at base." Okay, so the Hallow hit our base. No big deal. Might have to move some NPCs but it's not the worst. I go back home and the Truffle tries to move in and for some reason, he has no spots. I check the housing menu and all the NPCs who I had living in the Jungle had moved back in. My heart sinks and since I can't use the pylon in the jungle anymore, I hightail it across the map. As soon as I hit where the Jungle is supposed to be, the Crimson's background pops in and the little herpes(?) monsters are attacking me. The Crimson's side of the V consumed the vast majority of my jungle biome, at least on the surface and what I can see underground. The little section of jungle visible on the map to the right of the lakes is sandwiched right between this new Crimson and the hellevator to the original, though it might be converted as I didn't go all the way over there when checking.
This completely wasted hours of effort of earning gold and making the four hellevators. I'm still pretty unfamiliar with the deeper mechanics of the game, but from my perspective, were pretty much boned. Is that true or is there something I can realistically do before the Crimson eats my entire jungle? I stopped playing pretty much as soon as I realized this so I can do damage control if it's possible before the Crimson spreads.

Also, money spreading the house in the last couple pics.