The numbers all seem the same with the exception of the pro link. Is it possible? Welding required? It's not for racing so I'm not overly concerned with the fine points, besides the 03 has better wheel, brakes, tire, sproket and shock not to mention looks way cooler. so those are the pros, what are the cons? Forgive me if I'm being retarded, this is my first build, just want to know if I should loose any sleep or just forget about it.