You should take a look at this one :
It's a 60% RGB with bluetooth mechnical keyboard and programmable that comes in different flavor (blue, brown, red) in different color only ANSI at a good price 67$ :
https://www.banggood.com/APP-Contro...oth-Mechanical-Gaming-Keyboard-p-1064055.html
If you have a bit more to add, you should add custom keycap, it will look awesome :
https://world.taobao.com/item/541178284732.htm
Take a look :
https://www.reddit.com/r/Mechanical...ard_art_anne_pro_custom_lighting_with_sanded/
Or you have this one :
Not 60% but almost, RGB, wirelesss, coming in different flavour (blue, brown, red, black), different layout (ANSI, ISO UK, ISO FR, ISO IT) and different color (Black or White) too but switch are not as good :
https://www.amazon.de/DREVO-Calibur...&qid=1506233495&sr=8-1&keywords=drevo+calibur