When I first cut out gluten and dairy, I got so much helpful advice from this forum; there's a significant sub-population of people trying to heal tricky health issues and even when the root cause wasn't the same, I still found interesting trends and helpful tips.
There are a lot of gluten/dairy free TF blogs out there, or some gluten free where they list dairy substitutes, let me see if I can find a few...
http://www.thenourishinggourmet.com/http://glutenfreegoddess.blogspot.com/http://wholehealthsource.blogspot.com/ <-- this one is mostly discussion, only a few recipes, but the idli recipe, as an easy bread-substitute, is worth it all by itself
There's also a long recipe thread in the Allergies forum, most people there are gluten and dairy free.
http://mothering.com/discussions/sho...d.php?t=886118
I know next-to-nothing about Crohn's, but I'd say that another place you may want to consider doing some reading is in the world of autism spectrum kids and gut issues. There's a lot to learn about digestive enzymes and different types of malabsorption problems, I have only dabbled in the most basic of gut dysbiosis because it's not a huge issue for my kids, but if you pick and choose the issues that seem like they may overlap for you, you may find something interesting and helpful.
There's a great fermented veggie thread on this board that really helped me get going, kimchee does a nice job crowding out my DD's candida, though cutting out her food allergens was an important first step, I think.
http://mothering.com/discussions/sho....php?t=1196747
No dairy is needed when fermenting veggies, Sandor Katz's book Wild Fermentation is really helpful in understanding the fundamentals of fermenting.