Looking for Ideas on 1932 spare tire and wheel.

[solidaxle]

What does everyone do for a spare tire and wheel?
On my 32 roadster, I have 16 x 7.00 in the rear and 16 x 6.00 in the front bias ply tube type tires. It still has the rumble seat lid without the seat installed and carry a 16 x 6.00 as a spare. If I have a flat, can I run the 16 x 6.00 on the 32 banjo with a Columbia 2 speed with a 16 X 7.00 on one side? I'm concerned about the two different size tires on the banjo.