one qustion

would staining a skyline be a good idea if it has dings and scratches

Staining, no. Satining, yes. That is if you want to have raw aluminum rims.

just make sure you dont take to much off or you will see some vibe or it will start to lean

Not really. I’d rather have dings than risk a vibe.

I"ve gotten a permanent marker of th same or close enough color and just dabbed the ding till it almost vanished.