The Spitfire
Unfortunately, the nasopharyngeal (tube down your nose, into your small intestine) technique is more effective than the up-the-butt technique (at least according to most studies). Apparently, most of the pathogenic bacteria are centered in the small intestine. So changing the flora there is most effective. In some cases, as you might have read, it is life-changing and life-saving.
The Oregon poop-for-sale outfit (mentioned above) only does it via the butthole entry method (sorry). So it is not as permanent nor effective. It only deals with pathogenic bacteria in the lower half. Not the source. But you do get that wonderful retreat afterwards. That's worth $7000, isn't it? You can talk to fellow patients, standing around in your spa-provided, white terry cloth robes, while sipping cocktails, "so how was your transplantation?"
I believe there are websites and youtubes that show you how to do a self-administered transplant. I'm not a doctor, but if you have a close, and I mean really close friend, who won't disown you forever, that might be the way to go. You would just have to pose the question very delicately: "Umm, listen, we've been good friends for a while, right? Well, about those bathroom breaks you take every day; would you mind taking this tupperware container in there with you and ...?"