just sell it to a big seller so u dont get scammed the chances of getting banned are slim and even if it happens chances are itl be the guy who buys it from you who takes the hit
There's no such thing as "safe trading gp". It's against game rules so there's always risk.
Just as an example - almost all bans I got were after stake trading so I completely stopped doing them.
Droptrading also got one of my mules banned.