My school-run minibus: Leonardo's only way to earn a living

I make my living with my school-run minibus. 5 weeks ago the engine head gasket failed, and the mechanic says the repair will cost $1,350. Without the vehicle I earn nothing. I have been borrowing from friends to pay rent, and now I have run out of people to ask. I support my 1 children. Before the breakdown I worked ten hours a day, six days a week. I have been offered extra shifts for the next three months if I can just get the vehicle working. I have a written estimate from a certified mechanic and will upload it here. All money will go toward the parts and labor on the estimate, with a small amount for road tax and insurance renewal. Where the $1,350 goes: • engine head gasket replacement (parts): $720 • Labor charges: $350 • Road tax and insurance renewal: $135 • Towing and inspection: $145 Please ask me anything in the questions section. I'll answer honestly and quickly.