I hate to say it but I found a rather stupid error in my calcs. Got a clue as to what the answer should be on website at
http://cryp.today/. Not really expecting profit with 150 KH/s. Looking for potential for profit. Still working on projections but making more sense now that stupid mistake is corrected.
Haven't looked at power costs yet. Looking for advice on mining hardware that's reasonably efficient with watts and affordable upfront for small time at home miner.