I see your need for accuracy, but sometimes you'll just have to do what is provided for you. What most people in your situation do is make the products themselves.
Buy a short black wig (or a long one, if you want to have long bangs). Style the bangs how you would like them to look.
Buy a black clip on as the pony tail and clip on at the back of the wig while you wear it.
For most accuracy, people make it from scratch. Cut it out of wood, sand it, paint it. Or make it out of cardboard, paper mache it, sand it, paint it.
But I'm not the one that's picky about accuracy. I would just simply buy a wooden kendo bokken (this would probably be best, especially with weapons policy with cons these days.)
I would generally find suitable CHEAP boots and then cover them over with a choice of material. I would highly recommend against painting, unless you know how the paint does with the boots.
But if you're not too picky about accuracy, just buy some boots that are as close as you can get to accuracy.
In desperation, you can find many resources on the internet if you can't find them near you! Good luck!