can my 'miners' connect from computers outside the home network? And how do they connect than? Also with a standard miner like GUI-miner? And can i change the payout method, from PPLNS to something else?
Respectfully, you're asking some very basic questions in this forum, and expecting to set up a pool and have people give you money.
If you can't do this yourself, what exactly are you offering of value?
I'm not a mining pool operator, and I have enough knowledge to set up p2pool. I also have enough knowledge to know it isn't worth my time.
Bitcoin is money
. Money is hard to get.