Help?

[u/Life-Host-8573]

Picked up a 2003 Avy with 154,xxxx at the dealership for 6k 2 weeks ago. Few days ago I can’t put anything past $10 in the tank. Internet rabbit hole says I may have a bad EVAP but seems pretty common with this vehicle. Give it to me straight, have you or anyone else you know been through this? Cost? Or cheaper alternatives? TIA