The Bulle gear from flecktarn is great, but they don't seem to have a plate carrier option currently.
https://www.flecktarn.co.uk/solidcolours_olive.html
If you want something "uniform" for you all then China might be the way to go.
If you just want the same colours then I'd watch out for cheaper end second hand real kit coming up like WAS etc.
Depending on your budget you should be able to land some reasonable mid range kit like tactical tailor or Eagle industries in the £100-120 ish region.