Bias vs Radial tire cost

[edhd58]

Okay here's my situation. Its time to order tires.
I WANT to buy bias look radial tires. after the cost of tires, tubes, shipping and mounting it will be approximately 1300 to 1400 $$$$.
If i go bias the cost will be roughly half that.
The car will be driven a fair amount of little local trips on weekends I am off, but I am working 6 days a week (every other week) 10 hour days.

Using this scenario can any of you justify the extra cost of radials and what is you reasoning?

The car is a 42 Ford Fordor. I included pictures .