Help Us Get A New-used Engine

We just put everything into a new HVAC system as we'd been without heat for over a month. As our luck has it, my "new" 09 Murano has a head gasket leak which will need to be replaced. It will cost about the same to replace the whole engine with a refurbished one. We bought a third party warranty, but of course, it doesn't cover this. We literally just got it December 27, 2019. We barely paid anything towards it yet.so selling it isn't an option. I've been working for delivery services, but I stepped back as my anxiety got out of control and was giving me severe health issues. We need help getting this engine. My car is a necessity to get the kids where they need to go. Anything helps! Thank you for considering us.