i don't know a whole lot about the transplant, just what little i have read on the net. it is a very simple procedure using a healthy person's stool, filtering it, mixing with water and then it is administered. the results seem to be miraculous in some cases with ibs completely cured in a day or two and never to return.
you could also be a little more conservative and try SCD yogurt retention enemas. yogurt enemas are a pretty common thing to do in ayurvedic clinics. i know that some colon therapists use clay implants or ozone water implants.
i wasn't doubting your experience that the Antibiotics caused the problems, i was just trying to get down to the root of the problem. have you also tried home made rejuvelac? l. salivarius? any other soil based microorganisms?
i would also be very careful with fluoride and chlorine consumption. ( most of the water in the u.s.)