Like this?
It was a real biach to do. The steering column support from teh civic had to be removed and the support from the integra welded in as well as the center mount. The sides I had to make custom brackets to mount them. The dash is approximately 3/4" wider so the door panels interfear with the dash. Teh teg door panels are 1" shorter front to back and have to be lenghtened to be useable. I am using extended integra top panels and custom made bottom halfs for the door panels. The dash sticks farther back into the passenger compartment than the civic dash and will have little clearance between it and the window cranks so I am installing power windows.

It is possible but quite an undertaking to complete.