we re looking for a wholesale extensions that allows us
a.) getting orders without generating an invoice automatically so we can set manually payment terms (payment method: mainly per bank transfer & payment time: 7/14 or 30days)
b.) to set certain payment parameters and individual wholesales prices within the costumer account.
Would be great if someone can recommand us if anything like that is on the market or how we can solve the problem in a different approach.
Which version (and edition) of Magento are you using?
I don't remember a module that solves that in that way (I don't remember but you should search anyway).
I guess the best approach is to create a custom payment method to handle your own rules. I believe that is achivable.