What daily outcome are you expecting with just 3 gpus? Distributed among all investors the outcome should be really low.
What fee or percentage is going to be your reward for maintaining the service?
Will you be able to scale the mining to lets say 50 GPU's if you had the money?
Who is working with you? Are they getting a fee as well?
Can I get payed in STEEM as well?

Be more detailed and transparent about your project please.