I really lucked out, I paid 9.6 LTC after my coupons and then bought back my litecoins for $74 each. So technically I bought my Z9 mini for $710US. I've been running it at 750 since about day three on supernova ZenCash pool. At this rate it ROI is 3 weeks.
RE: Mining ZCash with the Antminer Z9 Mini - Part 3: Set-up