Go to China...
or at least be willing to pay top credit to the Black Market. Rifter No. 3 mentions that, if a juicer can get ahold of some of the “regeneration” strain of the “beans of life” created by good-aligned lvl. 14+ chi masters,
...not only would the detox be a complete success, he would suffer none of the normal penalties; his attributes would all be back to normal, and it would be as if he had never had the Juicer procedure done! Even if the Juicer were to wait until it was normally too late for a detox to work, even if already experiencing the symptoms of Last Call, the Pill of Regeneration would help the detox to succeed, although with the normal penalties and possible side-effects.
In addition, for anyone getting ahold of the beans at all,
This will completely heal [all damage], in addition to adding 25 years to their lifespan[.] ([T]his effect is not cumulative[.])
25 years onto the Juicer’s expected natural life, not the stunty live-fast, die-young life. Psychics and the See Aura spell can detect genuine “beans of life,” if you’re worried your hook-up can’t be trusted.
Up to your GM and playmates if saving your ass is really worth a trip to the Orient, but you could expect that some powerful chi masters would be hanging out on Putuo (an island off the east coast of Ningbo, southeast of Shanghai, sacred to the bodhisattva Guanyin) and in the mountains around Hangzhou (sacred to the Zen lineages) and Shaoxing (sacred to the ancient Chinese, who connected it with Yu the Great). All of those are in or very close to the East China Sea, so you don’t have to go too far inland if you want to avoid getting bogged down in the setting. If you want to make a campaign out of it, you could hike over to Mount Tai (old Holy of Holies), Mt. Hua (with its insane chain path), or Mt. Song (Shaolin HQ).
Also, obviously not as healthy, but you can always just hang out in Mexico for a week and get bitten by a vampire. Along the same lines, Rift witches have made pacts with unholy forces that could presumably deal with Juicer detox rather easily for a price. How important is your alignment to you?
Also also, there’s always Resurrection, if you’re fine with dyin’.