Waited awhile hoping Lian Li would release a O11 XL in silver for something different, thankfully they did. After comparing measurements and modifying the case slightly I was able to fit a 420 top rad along with two additional 360 rads (60mm bottom & 45mm side). It's a tight fit with three thick rads & 13 fans. The cooling potential made it worth it however.
I used stainless steel hardware anywhere possible to match the fittings & case exterior. Glass tubing was a learning experience but overall turned out fairly decent. That being said I probably wouldn't use it again as I found PETG so much easier to work with.
Update 4/13: I ended up swapping out the EK clear cyrofuel for the cloud white cryofuel as the LEDs from the resevoir were lighting up the entire room. Seeing what it looks like now I wish I would've went with the solid white coolant from the beginning.