My motorbike: Tadeusz's only way to earn a living

I make my living with my motorbike. 4 weeks ago the gearbox failed, and the mechanic says the repair will cost $600. 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 family of five. Before the breakdown I worked ten hours a day, six days a week. I have been offered extra shifts for the next four 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 $600 goes: • Towing and inspection: $55 • gearbox replacement (parts): $390 • Labor charges: $155 Please ask me anything in the questions section. I'll answer honestly and quickly. - Tadeusz