Adding rear sway
 

So what am I looking at with the prospect of pulling a rear sway from a 5th gen 4dr Civic that I saw at the boneyard today, and slapping it onto my 93 EX Coupe? It wasn't until just a moment ago - that I saw that some iterations of Civic (in the front end) had varying designs for the lower a-arm, in that, some had a casting that would take the end-link bolt, and some didn't - while I was looking for information about this.
My understanding is that the 92-95 EX Coupe had a 21mm in the front, and nothing in the rear. Whereas the 92-95 EX 4door (and Si) had the 21mm in the front, as-well-as a 13mm in the rear.
Were this possible, would it be 'easy' in that I could just remove the rear sway from the donor that I spotted today and slap it and the associated hardware on my civic, or are there far more steps that would need to be taken, like removing the rear lower a-arm and taking that too?

does you lower control arm have a hole in it for a sway bar?

I had a look and it looks like the answer is no. Would you say that this something that can be remedied by simply replacing the lca, or are there mounting points that do not exist on my Civic that would make that impossible? I'm talking bolt-on solutions, not drills and sawzalls and welding, oh my. Assuming that it's still there, I could just go back to the junkyard and find that 4-door 5th gen Civic and take the rear sway along with the lower control arms and bolt it onto mine...

You can swap out LCAs and be fine.

Awesome - Thanks!