Those boots do look a bit high, but as long as the spat piece covers everything you should be okay. My wife uses black Palladium shoes I bought on Amazon, they are canvas like Converse. The sole pattern is almost identical to Bo's in the show.
The helmet paint is pretty particular, but the rest is just gray heavily weathered. We used a dark wash over everything, I believe it was black and brown paint mixed with windex. A couple other pieces are painted other colors like the shins and shoulders, but for the most part that's what we did.
We attached all her armor pieces with heavy duty velcro, which I would suggest against. Go with snaps instead. Some pieces are okay, like most of the stuff on the upper body, but the shins popped off multiple times because of movement combined with getting caught on the foot spats. Also the crotch pieces don't like to stay put, also due to movement. You could start with velcro and slowly replace with snaps, might make it easier to know where everything goes and have some room for error. Snaps really have no room for error.
