As far as I can understand from your story, you can't do it right now, unless Binance has new order types. What you can do is probably put a sell order at the price you believe Bitcoin will reach later on, and then put the stop loss at $50k. If the price drop to $50k then your order will be placed on the order book and if you're lucky all of your Bitcoin might get sold asap. If that's not your thing, then another option is to use a bot that supports such task.
Thanks for the reply, nevertheless, I am asking this question, as I am in the process of making a grid bot and need this to close profits, while being able to trail-up / lock more profits instead of using fixed sell limits.
As it appears, there is no safe route to take in trading that ensures 100% order filling in spot market.
So, considering that, if I use market orders for buy and sell, the actual prices have big deviation from expected grid levels,
while using limit orders, has the problem of orders being filled partially and inability to achieve a trailing-up / lock profits mechanism...
Does anyone have any ideas what is the best way to do grid trading ?