you need $25,000. to $30,000. for a 1969 GOT which is a high demand classic. no such thing as cheap muscle car.
Even if it did not run and is rusted out it still will sell for a lot more then $3,000. being about $6,000. for no motor rusted
out shell of a body of a 1969 GTO project shell.
If you can wait years and years maybe with luck a police auction or state auction from drug bust you may get one if its very bad weather and no one shows up but you are rair situations where people have gotten deals on cars,boats real estate only in those cases.
$3000. will be a down payment for a basic used car like a honda civic, or VW Battle for $6,000. to $10,000. and good credit.
$3000. cash will buy junk car that will not last so taking the bus or train would be better then buy junk for $3000. that should only be driven to just to work and home being local trips but would be wisher not to buy a car at all if that is all you got unless it is a down payment for a used car and have a extra payment for car insurance.
They have toy car models that you can put on your key chain for your apartment keys that will be the only 69 model GTO you can afford using the $3000. for a apartment deposit or used car down payment providing you have a extra $3,000. for your car insurance.