Alphacool Eisbaer Aurora 360 CPU AIO, Digital RGB

Does this come prefilled or do i have to fill it myself?

Will the quick release work with my 2080ti alphacool gpu connection? to loop them together

The end tanks on this radiator look like the total length is around 370mm. Anyone know which mid towers are able to accomodate 370mm of space on top?

Can i add a gpu to this alphacool eisbaer aurora all-in-one cpu cooler, 360, digital rgb loop?