u need t-34? if so, its 269,500 rubles , then to 193000 rubles, then to 135000 rubles, all in 1941
KV-1-635,000 roubles in 1941 to 295,000 in 1942 and 225,000 roubles in 1943
and this website looks promising.
http://www.geocities.com/Pentagon/Quarters/4635/