Rear Brake Hose

Anyone know where I can find a new brake hose? The flexible one that ties the line between the body and rear axle. Tried a 71 as that is the only number the parts store had available. The distance from the flair seat to the washer seat is not the same as stock though, so about 4 washers would be needed to even things out.
BTW the car is a 70 Challenger.
Thanks,
Jon

Thanks,
Jon