Welcome to the Nexus!
Many Nexians felt intimidated by extraction teks at first... Don't worry it's as easy as baking cookies. I failed my first 3 small extractions but didn't give up and just kept trying. I"M SO GLAD I DID! DONT GIVE UP!!!! It would be truly sad to see someone who longs for such an experience that DMT can provide to not ever experience it just because he doesn't have the determination to follow through with it. just trry it. You can't succeed if you don't try! 
Also I dont know your friend, but I would strongly advise against buying DMT. DMT is priceless. When you extract it yourself, not only do you get a lot more 'bang for your buck', but you develop a truly deep and personal relationship with the substance and the plants it comes from.
DMT is best experienced in a calm, peaceful, tranquil, tidy, room. It is so intensely personal, doing it at a show would distract you from the direct and penetrating power of it, at least for someone who is new to DMT. This is NOT LSD.
And who says your wife can't experience DMT? You? [I mean no offense and only respect and support] but If your wife wants to try DMT, it's ultimately her choice. How would you feel if she told you that you weren't allowed to do DMT?
And one more thing, There is no need to rush. DMT rewards patience [greatly] and If you rush into it just looking for something to scratch a decades-old psychedelic itch you probably won't appreciate it the same as if you extract yourself and are patient with it. [although it will certainly scratch that itch
]
Safe travlels, SWIM