petrol in thailand itself is already around RM3.40 per litre
RM1K++ or even RM2K wont be enough even just for the petrol let alone the food, hotel and also tear and wear part of your bike. (i.e. tyre punture, plug burn, oil change etc)

try google map and calculate the distance and recalculate your budget

Its possible to ride all the way to china however its your budget that not enough...