One thing or two about assembling androids: the game randomizes the shit outta it.
I tested with a perfect corpse of giant woman, hacked the limbs away and put them into one piece. The resulting android has normal villager trunk. I tested with loli corpse, hacked it to pieces and reassembled it: somehow it turned into normal native girl with severely shortened legs but normal length of arms. I tested with old woman corpse...it gets rejuvenated into normal native girl.
Also, if your corpse has equipment, it will get erased after completion. Be not stupid like me assuming the resulting android will be able to equip armor and weapons if you let the corpse equipped...nope! It's gone, and you still can't do any interaction with them anyways, including equipping things.