I posted Apollo the conure's cage awhile back, but now I also have a new quaker and have upgraded both of their cages within the past couple of weeks.
Quaker came with a corner cage, but I wanted to give him a bit more room so I ordered the new Borneo cage from exotic nutrition. It occurred to me that I might be able to attach the two to make a mega frankencage, so i ended up doing that. The dimensions of the cage sides aren't the same, so I came up with a solution by taking one of the panels off the corner cage, taking the feeder doors off the borneo, zip tying the two cages together, and using the feeder door openings as doorways between the two cages (so the sides don't need to be the same size, as long as the the corner cage is flush against the side of the borneo).
So then I figured why not upgrade Apollo's cage too? This was easier since he had a double critter nation, so I just needed to order another double cn and take a side panel off.
Filling up the extra space with more perches and toys is a work in progress, but that's what everything looks like now.
The two six foot long bird cages are now taking up a big chunk of my bedroom though. This is how I have them arranged in the room so that they both are able to look out the window and can get close-ish to one another and interact if they so choose (currently there's some sibling rivalry going on, but I'm hoping that over time they will warm up to one another).