If I were only able to trip one more time in my entire life id make it a big one. Id want to be with 1-2 really good friends somewhere really beautiful like a tropical beach or in a scenic country-side.
Id 1/4oz of awesome pot, 3 hits of good acid, 3 pure MDMA capsules 120mg each, a gram of ketamine, 20ml of GBL(enough to hold me until well after I stopped tripping) and 20 nitrous bulbs. If id done mushies more then I might swap the acid with the mush but I havent done them enough to really distinguish the differences. I know thats a lot but it'd be worth it and it'd be fun as anything id ever done before.
Id want a caravan/camper van with a sober driver and a few different lookouts or headlands on which we could go and gaze at the horizon, id love to have the last pill about an hour and a half before the sun was to rise and go have small-medium lines of K and watch the sunrise come up over the ocean from afar. Then after the K was all gone just chill out all day taking GBL, doing nitrous and smoking weed. That sounds perfect.
Of course we'd need a loud sound system for some awesome psytrance, electro-house, breakbeats and ambient music to be played through, friends who I love to death and a comfortable bed to crash in after were all done. A few different kinds of juice(and of course water), some nice brekkie, some lasers/strobes/blacklights/coloured lights and some party toys like glostix and raver toys. Id want to be far away from civilization, at least 10 hours away from any major towns. And my preference of weather would be nice and warm, though a little bit of rain or a storm in the night or when the sun was coming up would be awesome, though not enough to make us cold, enough rain that we could run around dancing in the rain, then after find a little water hole that we could wash all the mud off with.
NO ALCOHOL!!!
That would be the ultimate trip for me, and its totally possible too. Apart rom the weather stuff, but everything else is possible.