providing you get the right £ per kilo ratio
it will pay for its self on the firts trip , and give you about ££££££ profit although i would have the added extras fitted such as cold water pick up to mask the exhaust heat, and also have the sound proofing taken out of the engine liddes to fit more bags of ice in
also perhaps go for the automatic all over cover , such as in the will smith film , this will stop the choppers from spotting you
all knowlage gained is not from first hand experiance LOL