fractal design r5

Anybody here tried installing ACLF II 420 in FD R5 case? Will it fit? I mean ppl are having problems installing a 280 version so I doubt it, but still, anybody tried it? Also, if it doesnt fit, do you think its worth replacing my NH-D15 for a LF 240 or 260 version for my 10900k? Thanks in advance!