0.4mm nozzle works good for me (for my MTB valve), so just print this at 100% scale or adjust slightly.
body 3mf file contains variable layer height, bottom part must be 0.05 layer height so the thread works well
so because of 0.05 layer height this is recommended to be printed separately
also print probably separately:
body + arms in one color of your choice, so his shirt color match sleeves
hands + head are usually yellow
OPTIONAL: eyes black (0.05 layer height)
little supports are only for arms needed, because of arm joint support
Assembly:
glue eyes on the head
put things together - you will probably need to use sand paper/razor knife to cut some parts (brim connections, arm joint support which will be exceeding probably from the joint)