You can go in the night before and camp in your car, or be in line at 4:30 am. Swap opens at 5. Have a flash light. Wear warm clothes.
After you have done the VW section, go up and do the V8 section. There is always lots of VW stuff up there, usually better deals since it is V8 guys getting rid of the VW stuff they've been storing since they got out of VWs.