Take precautionary advice before trading.
As there are huge amounts of btc and waves going to be exchanged, it is better to use solid escrow. I would like to see escrows in here to facilitate the smooth trading.
I am selling Waves for 0.001 to 0.0015 btc depends on the amount, any amounts possible.
Escrow just over professional escrow:
https://www.bitrated.com/bitlawyer