Wasn't aware forklifts could just drive up to a pipeline of any kind and fuel up- most port areas that I have ever visited on the east coast, New Orleans and Houston areas, Chicago Los Angeles, Miami, Vera Cruz, Mexico, Japan, have on site fueling like diesel and LP tanks to keep them "up & running". Do they have them do it for not so many shipped & deliver Ammonia eaters too? The world is waiting for your never produced one fork em up Lego style lift truck - Jack.
Remember you have done all the talking but your dream is like those flies in Alaska that they call them "no see 'ems"