how much and how often to raise the blinds?

it all depends on all the factors,is there a donk istere an aggresive player is there a mark? all theses come into play

Blindvalet.com is really helpful in home games. I would possibly change the payout to top 3 if you get 8-10 players.

I've also played a home game where 2nd gets their buy in back. I like that a little better than winner take all.

4 k 20/40bb 15 minbut that depends of you and your friends

play it exactly like a sit and go 1500 chips start at 10/20 double blinds every 15 min

depends on have you play are wot your freind wont to play