i can PM you some seller later on in here. price are of 300+ for Heng Long 1/16 rc, and 399+ for VSTanks
For actual shops, one of it is:
RC Dreamz
Heng Long do have KV-1 while VSTank have both KV-1 and KV-2
take your pick

among all, i would advise not to go for tiger i

the earlier tiger i by heng long uses the old rx-13 board, which is problematic
the newer ones does fix the problem with the use of rx-18 along with other improvements, namely:
a. the mantlet is now in correct position
b. the gun is now in correct length

but some is still need of improvement, like:
a. the symmetrical turret shape is still there. the left side should be tad narrower
b. the stowage bin andle should be 90 degrees towards the turret
c. the suspension should be inversed for the left side (both side of suspension arms are swinging towards the back)
d. the commander's cupola end should aim towards the far end front of loader's hatch, which brings the next one
e. the vision slit is somewhat wrong

but all these are some that i can identified. the cover for engine grill is also not historically correct if i do remember well.
get the tiger ii instead

or from the list, any. i don't really check for other tank's accuracy comparison

Accuracy aside, another thing is that Tiger I do enjoy getting tracked since it is using pin. Unlike Tiger II, Tiger I track is narrower, hence the tendency of it being tracked is higher.