Congratulations on the success with fecal transplants. To get such good results after only 10 days is a very good sign, and likely because you have had Ulcerative Colitis for a relatively brief period of time and mostly confined to the lowest part of the colon. It is possible that c. diff was part of the problem, however FMT for c. diff is often effective when done just once or twice. I believe given your previous response, and the relatively brief period of time you have had UC, that you stand a really good chance of beating this thing for good in a relatively short period of time. I think you are on the right track with the fecal transplants, however I think you should do them for longer. This may include doing them daily for a week or two and then tapering down the frequency over the following 4 - 6 weeks.
It is possible that the mesalamine enemas are interfering with the good bacteria established by the fecal transplants. One of the metabolites of mesalamine is sulfapyridine, a sulfonamide antibacterial, which were the original antibiotic drugs. So it is a good possibility that mesalamine is killing some of the "good" bacteria. (more on that on the Wikipedia entries for Mesalazine and Sulfasalazine.)
I don't think vitamin E enemas are a good idea, and might just interfere with the FMTs. L-Glutamine can definitely help healing as can protein shakes. Iron supplements (liquid or iron glycinate capsules are best,) and vitamin B12 liquid, losenges or injections are helpful to boost energy.
Here is a study that you may find interesting:
Fecal Microbiota Transplantation: Indications, Methods, Evidence, and Future Directions Here is an exceprt from the study:
Anderson et al. [24•] summarized various case reports published on FMT in IBD that had promising findings. Remission was reported in 15 of 24 patients (63 %), cessation of IBD medications in 13/17 (76 %), and reduction of GI symptoms in 19/25 (76 %). Similarly, Brandt confirmed the activity of FMT in his experience with treating UC [25, 39]. Recently, the lead author’s group reviewed their UC cases treated over the last 24 years [40] and discovered an interesting phenomenon. It seems that although initial FMT may not immediately cure UC, as happens with CDI, over many months to years, the implanted microbiota appears to progressively transform the inflamed UC mucosa to normal, histologically uninflamed mucosa. Twelve of 21 patients (57 %) who had repeat colonoscopy at a mean of 33 months (range 1–198 months) demonstrated complete mucosal healing with normal endoscopic appearance and no histological inflammation