I have a 89 golf and was involved in an accident over a year ago. Car was totaled and i bought it back because i love the car

anyway a buddy of mine said he would get a mechanic he knows to fix it up at no cost just need to supply the parts. Well when i was in the accident i got the car home and pulled the radiator,fan and some other parts. Now the mechanic is tellin me that the fan that i bought was not the right one and he needs the bolts for the motor mounts/radiator etc. So i need to find a place i can get these parts. Does anyone know a good pick and pull with these cars in them or anywhere i can go get all the bolts/hoses/wires etc that i need?
Thanks a lot