THC vapes at about 205 degrees C (about 435F) so it doesn't need to be that hot at all really.

Combustion is around 250 degrees C (I think...) for weed so it a fine line between vaping and cooking then burning your herb.

If you weed is ground finely then you should find it vapes better at a lower temp.

Option B: Save $500 and buy a Volcano