Modular

Machine Men

Being at its core a machine, Machine Men were designed to be modular and upgradable. Machine Upgrades gives you a list of upgrades you can give to your construct.
As a construct, you have the following upgrade slots available to you.

Chassis 4 Upgrades available.
Arms 2 Available Upgrades per arm. A construct can choose to remove the hand to gain 1 additional arm slot.
Legs 2 Available per leg. (most Leg adaptations require a slot from each leg)
As a Machine you can spend SKP to gain additonal slots . You can choose what location to put the slot into and you can change your mind on the location the next time you gain a slot.