My son & I are using our spring break this week to setup some mining. So far we just have acquired 5 Antminers so far to use towards Bitcoin in which we started with Bitminter just to get to ball rolling.
He also wants us to mine doge so we have our PowerColor Radeon HD7850 now hashing away at 355k using cgminer and started pooling with dogehouse.
We are absolute newbies at this and know we should ask your help to make better choices going forward.
We'll also be purchasing the parts to make a milk crate mining rig within the next week or so. At that point, the HD7850 we have now will go in that with a couple new ones.

Is there any advice/guidance anyone can give us for the most productive way to use what we have now? What programs to use and which bitcoin & dogecoin pools are the most profitable for small time hashers like us?

Thank you all ahead of time for your help in building our little mining project,

Brett

You can use some mining calculator and just change a difficult day by day

But people say there maintenance fees are 20-30%.

actually, it's means, in a wrods,China government want to ban bitcoin just said before, and we believe chinese could hardly find a way
deposit money to exchange or even withdrawal money from exchange in the near future.

I love this quote

PBOC held a serious talk with Chinese banks and payment service providers on April 24, requesting that they stop withdrawal for trading platforms and close accounts completely.