How to further polish this beauty (Bartmann)?

[Jantjeuh]

I'm so happy with this blade I can not wait to shave with it. The weight and balance is just out of this world! The scales are flippin perfect, I wonder if it cost a few bucks in the day.

I'm being extremely carefull polishing it, because I recently cracked a blade on (luckily) a trash razor by polishing it too vigorously.

Anyhow, I've dissolved all real rust, and have sanded the tang like nuts, cant seem to get it much better. the blade itself has some left over marks from rust on it. Now, I know you can go and start at the bottom grit and sand the whole thing, but I would really like to preserve the etching in the blade, it's all just so darn nice on this one, I love the spine also. I got this in a lot, and the lot contained all razors of the previous owner I think, and this one was his latest for sure, it even still had tape marks on the spine hehe.

Anyhow, I've used a variant of Maas and scrubbed most of the stuff off.

My question, if I leave it like this, will it start rusting again on those decolored spots? Does it harm my face in any way to start shaving with this beast right away?

What would be an alternative way, what grit of sandpaper perhaps would be needed, to get the pitting out?

No, I don't have a tumbler..

Oh and, what do you think of the razor?