Hey
TwynnB!
I think you might find this
primer to cholesterol and heart disease helpful. Essentially, cholesterol is not as much of a concern when eating lower carb diets, because your body has less cellular inflammation. Triglycerides are a huge issue, but they are extremely responsive to removing carbs. Given the diet your husband is eating now, he should see a great response just cutting out sugar and grains.
"Good carbs" like legumes are a finer point of contention, but as long as he doesn't overdo them, I bet he will feel a lot better and see a great improvement in his numbers. You can always tweak later and cut out legumes if necessary.
Good on you for supporting your hubby, and I wish you both the best in your quest for health! :-)