There is no point in combining all those drugs. You are combining things that are likely to act synergistically and potentiate each other- you will definitely passout/blackout and there is a fair chance of death too. Its a huge risk to run and it won't be anything like "fun" in any sense.
Please thing again before combining all this stuff. If you want to mix drugs, always keep doses lower than you would if taking it by itself. Don't start doing something stupid like eating 15 ambien- honestly, you will black out within 15 mintues and then all bets are off.
Take care.