That's kinda what I did with the country ribs except in reverse. I did the smoker first, then finished them in either the crock pot on low or the oven at 200 deg. I haven't eaten any of the ones done in the oven with BBQ sauce yet, but the crock pot ones with my concocted tomato sauce fell off the bones.
In that past, I hadn't done the regular ribs like that. I usually used the 3-2-1 routine in the smoker. But this next batch, I'll just do 2 hrs. in the smoker for the flavor & finish them off wrapped in foil with apple juice in the oven at 200 deg. for 1 hr. & then 1 hr. uncovered with BBQ sauce at 200.