Try this: http://www.crooked-dice.co.uk/
They have a lot of suitable stuff
Always my first port of call.
My SOCO team and detective:
Annie uses a Crooked Dice Scientist and an original Daughter of Shiva head.
DC Rivers uses the Man From 3000 body (I think the pistol is a Time Lift Security one) and the Minion Technician head.
A "Scientific Advisor".
CD scientist with flask, tablet hand (from an ARC astronaut) and bouffant minion head.
Not sure if I have the other scientist painted.