I have one of those vantage chassis with a RCM motor mount, Tekno batter tray and RX box. I was going to use it to convert my nitro revo to electric but ended up getting an E-Revo chassis. They're pretty nice. I still need to get rid of it at some point (more batteries!) but for now it rests quietly in my basement. They are pretty freaking stiff though, I added a thicker chassis brace too.I was impressed with the quality.