looking for steering column/ quick release wheel

So last weekend my steering column basicly fell apart in my hands. Im looking to swap in just a shaft and quick release steering wheel. It gets towed to the trails and only driven to the river. Everything necessary will be put on a switch. Any ideas on where to find the parts im looking for? I dont need my wheel comming off at 70.

speedway motors maybe in the oval track section

Thanks. Has everything I need.

add a wheel and a piece of tube. put the rod end close to the steering wheel.. 3/4" .188 DOM has more flex to it than you'd think.