tournament blind structure and chip count

[snapfc01]

hey... i tried to run through the search and din't get a whole lot... just wanted to see if this set up looked good? for a one table home tournament

blinds start at 25/50 and double every 20 minutes (leave out antes b/c some of the players would be completely lost if we had them too)
everyone starts with 3k in chips and we allow rebuys for the first 3 blind levels(no add ons)