that really depends. I'm taking my time and getting really good deals of the equiptment- figure I'll have $300 into it and have enough to set up a couple of rigs. Using impco stuff you can get used-rebuilt stuff for about 600 or so minus tank. The tanks can be real expensive or real cheap.
I'll also have a bit into a 1k tank and pump at home to get the propane delivered for the heating fuel cost. 1.71 right now- cheaper in summer.