dude. i'm going to comment on this with best intentions by saying that you're looking for trouble. even as an extremely tolerant user myself i try not to mix things in such a fashion mind you, i'm not looking for recreational value pertaining to opiates.
you
SHOULD NOT mix kpins and xans at those doses pick one or the other, aswell those are pretty high doses alone, the oxycodone isn't a crazy dose so thats fine if you're tolerant, the pregabalin + oxy combo is quite enjoyable, it can also make you more likely to nod on oxy, but i would like to reccomend a maximum benzo dose of 6-10mg to combine with the oxy/pregabalin as the pregabalin alone will enhance the benzo's effect significantly as its very similar being a gabapentinoid, the best at that might i add
I could increase the dose of each by twice the amount!
You should aim to try to keep your doses lower, the more you take the more your tolerance will build thus leading to everything not doing the trick anymore, also you're mixing benzos.. then throwing opiates into the mix? you're swimming in OverDose waters my fellow bluelighter, i've always said, know how each drug works with eachother before going overboard and know what to expect yourself i.e. not having to ask ' How will this effect me?' because asking this is speculative at best, i can only say it is un-wise to play with such high doses of benzos and then combining them, pick one, and remember
YOU CAN ALWAYS TAKE MORE BUT NOT LESS you can take the 60 oxy, and clonazepam at the same time / xanax one or the other, see how you feel, then go ahead and take whatever you feel neccesary but 40mg of benzos at once is somewhat rediculous to ask, if you want an honest answer, you'll be drooling out the side of your mouth no matter how tolerant you are with this combo haha.
Be smart..stay safe
~Zonxx