I started to piece some things together and found these for the pants:
http://www.blauer.com/medic-response-trousers-8828.html which you can tuck the leg pockets in and has reflective tape on it. They also have it on a shirt also:
http://www.blauer.com/ss-polyester-supershirt-8675.html that I'm not sure I like though, I'll probably just go for a basic shirt like you did, the pants though I think I might be going with those.
As for the boots the only US type manufacture that makes boots that are kind like the oliver is Haix but everything I've seen is $200+ which theres no way I'm spending that much. So I'll be holding off on those till last until either I can find the olivers or something that will work.
I am debating whether or not to have gloves with my uniform or not, if I did I was thinking of using the ones from the new movie or something that looks very close.
Otherwise the only thing I have kinda started which carried over from my normal uniform is the belt. Planned out what other accessories I need for it yet which I'll be getting some Anhcon stuff. I'm just waiting to hear back from him on something then I'll have to do some saving.