Cassie Shere emergency furnace replacement

This is not a request for myself but for my girlfriends sister Cassie who is an   awesome,  hard working single mom and friend who works 3 jobs in order to make life go round.

Recently the furnace in Cassies house  broke down with a cracked heat exchanger  (repair estimate basically as much as a new furnace) which requires the furnace to be replaced.  The cracked heat exchanger is causing the furnace to leak carbon monoxide which is potentially lethal so it can't be used at all. 

With Covid lockdown currently in place Cassies ability to work extra hours is limited which makes it  very hard to come up with the funds for a new furnace and with the winter season just starting here in Minnesota having a working furnace is essential.  Cassie is the kind of person who will always go out and do everything she can for everyone else, I am hoping by doing this fundraiser I can do something for her in return.  Any assistance that you can provide towards a furnace replacement for Cassie will be very much appreciated, I can't think of anyone who is more deserving than Cassie