i'd be more inclined to buy a private auto submitter or have someone make me one, that submits in a controlled way to all tgp's. that way it's not overused and the sites wouldn't tell the difference between the auto-submitted one and the manual submission. it's not really that hard
but i'm sure you'll get some good business since there are a lot of non-coding-equipped people out there who need this work done. good luck