Price of tube chassis?

A tube chassis will vary in price depending on who builds it. You can expect to shell out some "big bucks" though. Pro Stock type chassis' will run any where from 50 to 70 thousand dollars. You might just want to have someone weld in a good roll cage from front to back. That would be the least expensive route. Unless you're a hardcore racer, you don't want a chassis car. Just my opinion.