MummaV - I am non coeliac gluten intolerant. Seriously ill for a long time with many debilitating symptoms but do not reveal as standard coeliac - similar to your DH.
Initially I went gluten free using shop bought GF foods but agree with others they are expensive and made me feel ill.
Now I just cook everything from scratch.
Just remember meat and veg and eggs and fruit and nuts are gluten free along with rice and maize and quinoa. Many coeliacs are lactose intolerant but lactofree milk (easy to find in all good supermarkets and just normal milk treated with an enzyme to take lactose out.
Buy Pure margarine which is dairy free if he is lactose intolerant.
Then begin baking with Doves gluten free flour. Most recipes work fine. I make tarts and cakes with Doves gluten free flour.
Avoid products with Xanthan Gum in them. The Doves Self Raising flour has it in so I just put gluten free baking powder in their ordinary gluten free flour. Xanthan gum makes a bitter taste and not necessary. It appears in almost all gluten free cook books and shop bought GF foods to act as a substitute for the structural properties of gluten but really an egg will do the same in most cases. I make wonderfully light Victoria sponge and tart pastry. Marvellous for Swiss Roll, etc.
I also used to miss bread but rarely eat gluten free bread now as I find it unpalatable but home made pancakes, scones, cornbread all work really well. Genius GF bread I take to friends houses so I can eat toast at breakfast or gluten free bread buns if I am going out to a restaurant.
Maybe Dh can enjoy learning to cook well. I went on a chef foundation course at my local university for 3 months?
It sees daunting at first some things contain hidden gluten such as cornflakes sprayed with barley malt. I make my own muesli now. Ready made sauces, gravy granules, and stock cubes often include gluten. I buy Kalo stock cubes and make all my own sauces and gravy.
I batch cook and freeze a lot to save time.
Please PM me if you have specific questions. DH might well feel quite down for a bit about being not able to eat favourite things like bread. I was actually addicted to bread and biscuits because of the 'high' of the immune response. I got withdrawal symptoms but lost 2 stone. 
Your DH will certainly be hugely better health wise not eating gluten.