Urgent: Van Repair for a Dedicated Mom

Asking for help for a friend/coworker! She doesn't like asking for help, so I decided to do it for her.

She's a single mom that has raised 5 kids all on her own. She has a full-time job but also has an $1100 a month mortgage besides all other living expenses. She recently bought a van (using her tax refund) to get her and the kids around. However, the sellers weren't honest about the vehicle, and it needs a transmission after having it for about 3 weeks. Looking to gather enough to help with her transmission and getting it installed. Anything will help! Thanks in advance!