New (old) Toy

Yay! Took y'all's advice - Zeis Ikon Nettar Serial # J (according to the interwebs, 1923/24 model)

It's in great condition with the exception of 2 things - looks like it took a hit on the "hotshow" and it's dent in although it doesn't affect the viewfinder and, teeny, tiny bit of rust on the inside frame. Bellows are in great shake, did the touch test and no visible leaks. All rings adjust smoothly too!

I've ordered some HP5 Plus that arrived today but before I lose it, the rust.. should I attempt to smooth it off/remove as it may damage the film? Or, load it and take a chance?

Your words of wisdom are more than welcome! Thanks in advance!