Payment by bank deposit only. You don't want a charge back which would be very hard to defend. You might reconsider this once some trust is established. The transaction between you and your customer should be direct not through ebay.

Sorry, but if I saw a listing which said Bank deposit only I would be buying somewhere else.. Also, you have to offer one safe payment method meaning PayPal, Paymate or Merchant credit card.. If you offer PayPal and someone decides to pay that way then you can't make them pay with Bank Deposit..

Even when I come across listings that say Bank Deposit preferred, I either find another seller or pay with PayPal anyway

You can't make someone pay with Bank deposit to avoid something which is unlikely to happen anyway.

ALL sales are through eBay even if using bank deposit, you just have to mark payment sent manually.