Massive money making scheme - Never before

Wanna make 1mil an hour?

Need a script that will talk to the Duke in lumbridge castle to get a anti-dragon shield, drop the shield and then talk to him again to receive another one, really quickly.
Once there is 56, (two invents) on the floor, it'll pick up 28, bank them, then pick up the other 28, and bank them. the 56 shields will be withdrawn noted, taken back to the duke, dropped, then the cycle will continue.

***If you can get the script to do 3 or more invents on the ground and can bank them in time, please do so!***

Anti-Dragon sheilds are 356g. In one minute with a script clicking much faster than me, i reckon you could make two invents or more. 56x356=20k.

20k or more per minute is 1.2mil an hour. You like?
Leave it on overnight, and thats a whopping 10mil (depending on sleep times).

Please get back to me with improvements, or the finished script.

Cheers
-Underbaker