If you sell all the shares and don't take a share of the BTC for yourself, then it's hard to see the motivation for you to keep the machine running very long.
You should keep the 202, and offer refunds to those that have offered to sell their shares in this thread.
I agree with this.
I'd like to believe it's not a scam and trust your initial message that you will keep 500 shares out of 1500, from which you will pay for electricity and other overheads.