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The $500 budget doesn't include safety... Containment of fluids is included in safety.
You have plenty of the weekend warrior, "walmart pack o tools" at a motorcycle track day or race weekend also thinking Yamaha is there and gonna sign them to tak over for Lorenzo because even they can't stand him. I've seen more than enough bikes held together with zipties and safety wire that have passed tech.
I'd love to see bikes run for this long on the track. The big thing with lemons races is how many cars are there and how long you are beating on it which leads to the oil problems.