If you're reliable bitcoin dealer i will wants to do business with you.
You won't find much reputable dealers in the forum. I suggest you to use binance/kucoin p2p service for performing such activities. Its fast and secure for both parties.
You send the money first.
Escrow accepted.
SEPA is reversible. Always be cautious while accepting reversible form of payment methods. Using escrow might not help as well.
Thanks for the tip. I've been taking SEPA payments for a couple of years now and AFAIK there are conditions that must be met for senders to ask for a reversal.