[Carno]

A few webshops that sell what you're looking for. Turnbuckles might be a bit harder to find. Mostly you can just put the item number in the search field.
Chassis:
http://www.modellbau-seidel.de/index...rbs-Buggy-1-10
http://www.fusionhobbies.com/Tamiya-...-p/ta42139.htm
http://www.rcmart.com/catalog/rc-tam...9-p-28485.html
Body:
http://www.modellbau-seidel.de/index....Chassis-Verkl
http://www.rcmart.com/catalog/rc-roa...3-p-28484.html

Other sites you could try:
http://www.stella-models.com
http://www.etamiya.com