Dirt bikes Used. Vintage mainly

Looking for vintage dirt bikes but not complete garbage just something I can work on.Account is overflowing and nothing to spend it on so I would like to find something that might even run with a trashy look, I can fix it then thanks.Im not looking to spend 3 grand on a bike. Has to be a bike that can be brought back to life so about 5-6 hundred would be great or more too,Oh and whatever you have send picture so I know your Serious.Dirt bikes only.No quads or snowmobiles or scooters. I like mini bikes as well. Lemmy know Cool thanks😁