The HAND!! that's BRILLIANT! I have to do that myself.
I got the walkies too, filled in the holes on the slitheen with putty and painted them over.
For the 9th Doctor, you need to pick up the 12" Red Baron figure (which a couple sellers have on ebay really really cheap right now, must be on clearance) -- his jacket, once painted black and modified slightly is a perfect leather jacket for the doctor, and you can transfer the head from the walkie to the Red Baron fig. (I ended up repainting my head as well to give it a little better flesh tone and so forth.) You'll need to find a 1/6 v-neck sweater somewhere, I just happened to have one in my spares box already... black pants and boots should be easy to find...