1966 C10 Drumbrake Spindle damage

[Nils]

Hello Guyes,
i restore my 1966 Chevy c10 and put my Spindle out of the Rotor and see some scratches on the Spindle Shaft. Now i am a little bit afraid because i dont wand to take this Spindles back if it could maybe break.
I am searching for some new Spindles, but i only found some for Disc Brake Set up. I need some Spindles for the Drum Brake Set up. I think about to change with disc brake in the front, but then i need a set of new Wheels, because the Calipers dont fit with the old 6 Lug Wheels of my Truck. Its to expensive for me now. I the Future maybe in 2-3 Years its ok.
What do you think about my Spidles ? Where can a buy some new Spindles for my Drum Brake Set up with the old backplate ?

Thank you all verry much.

Greetings from Germany

Nils