not sure you understand how a hyip operates? in this case its completely run off the blockchain, which is already provided by blockchain.info, so only thing i need is to have internet access to my hyip wallet to execute the payout transactions. there's no overhead for me, i only need to make sure i got a pc/mobile to access the internet and electricity to pay that.
And the way this program works, is simple...one investor makes a deposit, in order for the first investor to get ROI, additional investors must contribute so previous deposits can be paid out (and same applies for each new investor, this is how all hyips operate)... in other words as long as the wallet is sufficiently loaded ROI is paid. I also keep a calcuations sheet on google docs (see my link on first post) which is updated in real time for viewing. you may contact me on skype as well to have any questions answered as well.
And for revenue i just take 5% fee as long as enough deposits are available to cover both the fee and payouts. if i can't do payouts i won't take a fee and refund any pending depos.
i hope this answers your question