Either one would work just fine, but if I were you I would go with the M-10. The M-36 started coming into service by the end of 44, so most likely there would be more M-10's. Another thing, you may want to get the M-10 Duckbill kit, that was the later model of the M-10, but both models would be fine.
As for references, two great books are available from squadron(www.squadron.com):
"Walk Around - US Tank Destroyers" and "US Tank Destroyers in Action", both published by Squadron/Signal Books of USA.
Hope this helps and good luck with your model!