Very Interesting & Creative Build.
What's the final build cost so far? And what are you predictions in mass production? You have obviously built this to 'revamp' the original club 500 in a more 'racing style' which needless to say you did a bang up job.

But to be competitive on the market, cost will be an issues, im sure many members on the forum now have 'itchy' fingers to get hold of one of these new 500 racers (so theres a market there for you) but cost will be a down side if its to expensive, as its been previously stated the club 500 is a winner for not only its design but its simplicity to build, its cost as well as all the parts included in the kit.
For a little fast electric do you feel that maybe this may be worth competing against such as the 'micro/mini v' rather then the club 500, as you have created a smaller fast electric rather then an all ages 'fun boat'?