Nope, totally understand about being as perfect as you can with a cosplay, especially when it's from a tv show or film.
I've done Alice's outfit and, yes, I have the boots, too. The only piece I don't have is the jacket though, only because I haven't found anything inexpensive that looks the part well enough for my standards.
The only jacket I've found that looks really good and I can get it custom made is here: http://cosplaysky.com/syfy-miniserie...t-costume.html
But it's in the triple-digits.
I would do what PSY suggested and check out thrift stores first. You never know what you might find! Good luck!