I split up this Shoretrooper helmet even more to fit the 120 x 120mm build plate of my Monoprice Select Mini. I used Meshmixer to split it up, It could probably been split better by someone with more experience. You may need to rotate the parts slightly and adjust your brim/skirt size to fit the build plate.
I printed it in AMZ3D PLA, used approximately 1kg filament.
0.2625 and 0.875 for detail parts
25 to 100% depending on the part
I didn't use rafts but I did use a 3-5mm on most parts.