>>11590771No no no no no
I've done all of this with Gundam Marker
I'm not taking them off their stands for you but I did panel-line Mazinkaiser with a humble pour-type black marker. It has details in the shoulders, chest, head, sword, and even pilder, and panel-lining them really makes the details pop.
I SHOULD learn to paint but I have not. But in any case, you can delay getting paint for now. You probably could hand-paint those details but I haven't tried this.