For further comparison, Check
https://www.indianaopenwheel.com/showthread.php?t=18563
his startup cost vs todays. USED startup roller with motor. This is pretty good equiptment to start and their have been a few better bargains but 20,000 without hauler, tools fuel cans ect ect.
The purse hasn't risen much but the price to race has quadruppled in just about every area