On this page you would find the links to get all the components to build a similar project like these and many other scale models too. The support and help on the following companies has been excellent for many years I been making scale helicopters.
Vario Germany:	www.vario-helicopter.de
Vario distributor for USA:	us.vario-helicopter.biz/shop/
Jakodosky distributor for USA:	www.starwoodmodels.com