Can't tell from the pics, but that roll-bar looks pretty straight. If you're still running the stock CJ cage, this is a very nice swap. If your torx bolts aren't too rusty it can even be a fast swap. 12 bolts and drill 2 holes, you're done. A much better place to jump into a full cage from. That's what I did, a late YJ bar, add a Smitty hoop, and some spreaders.
'83 CJ-7 nothing original but the tub and axle tubes
'83 CJ-7 nothing original but the tub and axle tubes