Manifold nuts

looking for opinions, on my “new to me” 2003 TD5 disco I noticed today there are two nuts missing off the end of the exhaust manifold. I don’t know whether to chance it and put two nuts on it or turn it into a day job of breaking the studs etc, skimming the manifold and re-fitting - while it’s reasonably accessible with the turbo off. It was a bit of a pain on the Defender recently and this has all the air con stuff in the way too. Pic attached, looks like it’s been like it a while.

I'd just replace the nuts. It's not that much more work to take the turbo off again if you have problems later.

I’ve took it off and got it skimmed. I guessed as the nuts had been off some time it has probably warped anyway

Good idea to get the job done properly.

did this for the third time recently. But this time I have fitted the stud kit from allisport with the expansion pieces.. so far so good