When I got the new I'm I wasn't very happy with how plain he looked, he was accurate but somehow plain. So I swapped his head with the Mark II movie head, sanded off his chest piece, then added in the chest repulsor. used spare parts from gundams and old figures for the knee/ankle guards. the thruster on his back is 4 seperate pieces from a gundam alex model kit that I cut up and glued together, followed by sanding to make the main piece look smooth and as if it was one piece. then did a complete repaint of flat and clear red and repainted the yellowish color he had with steel with a lot of dry brushing of copper and brass overtop. very very simple custom but I like it and it was fun. let me know what you think. so far I have only seen jin do a HRIM custom.