Anniversary Shenanigans - Plans for an Elite Fuckathon!

My wife and I have two precious child-free nights booked for our wedding anniversary next month. We have a pretty little cabin all sorted with fun accessories like a hot tub, a four-poster bed, a huge comfy couch and more. We have a mini suitcase full of sex toys, tons of slutty lingerie and a generous stash of supplies - coke, ket, MDMA, acid and weed. I'm working on adding some 4-MMC but that's not guaranteed. We try to arrange nights of getting high and fucking every three or four months or so, but this is the first time we've managed to arrange a double-nighter in a couple of years. Needless to say, I'm excited and I want to make sure it is absolutely epic. So I'm hoping to get some help from the wonderful community of shagonauts that is SexOnDrugs on what to do and in what order!

Some extra info:

• We arrive around 4pm on our actual wedding anniversary and have to be out by 10am two days later.
• I am a 45 year old male (my wife is 43) and yes stimdick is an issue when drugs are involved, some more than others (I'm looking at you, charlie). I usually rely on Viagra to good effect, but I'm not sure about how good an idea that is over two days. Cialis is the obvious alternative but I have never tried it. Thoughts?
• We are both open-minded and pretty kink friendly without being what you might call 'active' or lifestyle kinksters. But on these occasions we do like to really let our hair down and push boundaries. My wife's idea of a good time is basically being fucked over and over and over and then some more. She is very orgasmic and has incredible stamina. We have the sort of toy collection that can satisfy those needs (dildos, vibes, sleeves etc) but I'd love some kinky and imaginative ideas for how to create the sort of extended fuck fest that will leave her glowing for days afterwards. I am very, very into her pleasure, I like to space the times I actually cum far apart because my refractory period isn't what it once was and I enjoy edging a lot anyway. I am also very into receiving anal and role reversal, and again we have the necessary toys for that. As above, suggestions for what to do and how to build all the above into a wonderful experience appreciated! Not looking for a strict schedule (though substance timetable suggestions would be appreciated), just looking for ideas! Thanks in advance!