couple of points while my lunch cooks. i thought heli bowsers had to to be certified ie filters etc... the bowser pictured looks like a site bowser... like we use on construction sites for red diesel... i have a contact who can sell you lovely pre owned ones road legal for under 2k.... but i would never put heli fuel in one....... fuel proof are your people.
bear in mind you prob need a tow bowser as the fuel is delivered in arctics.... you may need on occasion to drive out to meet it if you live off its delivery route.. and finally im after a jet a1 fixed bowser 5000litre plus if anyone knows of any. pm me for details please.