Fractal Design R5 Radiator question

So I'm soon moving to watercooling in a R5. I think I can fit a thick 360mm in the top with a thick 240mm in the front, but does anyone know if I could actually fit a 280mm in front instead of a 240mm? Has anyone attempted this? Can't find anyone who's attempted so far!

You will probably find your answer here:

And here:

I looked there already...that guy always has really in depth reviews. He suggested a 240 in front with a 360 in top, acknowledged that you couldn't put two 360's in there, but didn't speak of the 360/280 combo.

He showed a diagram from Fractal which tells you all the possibilites at the 24:18 mark

From the Fractal website

Water cooling compatibility

Front – 360, 280, 240, 140 and 120 mm radiators of all thicknesses (requires removal of drive bays)
Top – 420, 360, 280, 240, 140 and 120 mm radiators. (A thickness limitation of 55mm for both radiator + fan applies on 420, 280 and 140 mm radiators) (420 and 360 mm radiators require removal of the ODD bay)
Bottom – 120 or 240 mm radiator (Use of radiators in the bottom position limits the PSU length to 165 mm)
Rear – 120 or 140 mm radiator