I've got the 5384106 w/white 5-speed pattern ball on my '66 FB. Looks awesome, smooth engagement and no reach issues.
That is what I have. A 69 boot and base ring will fit on it if you clearance the sides of the base ring.No, Hurst doesn't make that, IIRC, CPC does. Looks exactly like the 4-speed lever when installed, and they make a 4-speed lookalike knob with the 5-speed pattern on it.