Serious importer for used vehicles from the USA without advance payment as far as possible

hello, as the cover already says, I would like to receive from you proposals for serious importers for used vehicles from the USA. very important for me would be someone who does not collect the sum immediately in advance, but, where you can pay train or just after arrival in Germany. my respective inquiries at companies unfortunately did not bring the desired success, since I should always get in advance with all the companies in question and I do not bear the risk möc hte that a crook makes himself out of the dust and then I have no money, or the company suddenly registers during the import insolvency and I am allowed to join the long line of the faithful and then may not see anything more. the companies in turn justify their attitude by having made bad experiences with regard to the payment morale of pre-orderers, who then may not take off the vehicle or complain about anything about the price after delivery The idea came to me with a loyal dealer, but I would like to turn on a loyal dealer of my choice and not one who does a common thing with the import company, because that would be just as uncertain in my eyes and would drive the costs senselessly to the height. In summary it is sought: -serious importer with references, who takes over the complete processing with contractual protection. (would like to choose the vehicle itself by autotrader or cars.com). pletthandling would be before place check of the vehicle,purchase,transport to the nearest port,shipping and formalities in overseas,as well as in Germany. -recommended payment of an amount,but not the total amount. -facilitator of my choice or a neutral loyal dealer, who manages the sum until the receipt of the goods. I now ask you for suggestions and tips, maybe you have already successfully imported a vehicle at such a company and also stood before the problem that you can so vi el money doesn’t just want to entrust any company. does anyone know reliable trust companies? in question upcoming importers? the tüv upgrade would be able to carry out the workshop of my trust. hope to answer helpfully. nice greetings Vinz