>>5745320Micro Machines had army packs, here's one next to a 1/72nd fig.
The gaps (between the legs, outstretched arms, arms akimbo, etc.) would be the hardest parts of a mold. If you were doing a two part mold, you'd have to clay up the gaps to figure your parting line, and if you want to use a one-part, Smooth-on has a tutorial on glue-shims that would help:
https://www.smooth-on.com/tutorials/creating-glue-shim-help-deal-difficult-original-model/ 