withdrawal process is automatic on swisscex so it will done in 2-3 minutes
and HTC confirmations are fast so your transaction confirmed in 5-6 minutes only
so its all take less then 10 minutes to withdraw your HTC from swisscex to beedui deposit address
So if you are so sure about it, do it yourself. You are crossing the line into pushing a scam.
There are many things that can go wrong and I told you the correct way to do this type of trade is to have the fiat and currently already in place. That works and that is what the big players do. There are many problems with the way you propose this type of trade. It more likely to cost more BTC than you make.