typically about 30-60k to get a place. you wouldnt need anything more, most of the time, because the equipment stays.. all it is, anyway, is main counter and nail stations. there should be laundry machines in the back for launder of towels, and a little break room.
then place an ad for peopel to work the stations, and they would either 1) lease out a station from which to work and/or split the income with the salon owner... from 70/30 to 60/40