Hello together I pulled the big lot. I have to work out a project vehicle with alternative drive technology. Specifications: four-wheel, min. 500km real range, cargo space at least 2.7m long and approx. 1.90m standing height. Payload min. 1100kg. ZGG ideal 3500kg. NO BENZIN OR DIESELANTRIEB. I have now been looking for an electric vehicle for 2 weeks. The usual manufacturers laughed at me on the phone. I could only find one conversion, the electric Unimog of 10,5t available. (Not usable) All other multicar, Iveco, etc. project vehicles have never left the drawing board or have already been stamped again. Next attempt, natural gas. 3 manufacturers found that can generate such a thing. Minimum purchase 20 pieces of 120000-180000€ each. Need only one. I slowly don’t know any more advice. I’m already trying to build a sail on a sprinter. Wind drive. ??? My last thought was to convert a petrol transporter to natural gas. From VW there is at least another petrol transporter with four wheel. But everywhere it is strongly advised not to. I don’t know any more advice. Where could I still look. Which smallest manufacturer could have something on offer. I would be totally grateful for any realizable idea. Greeting Tac