Masters or 2nd Bachelors?
This really depends on your personal factors; there's no one-size-fits all answer to your question. Thus, your question is likely to be closed. Still, I'll take a stab at it. 

Disclaimer: my background is physics and CS, so I'm completely unqualified to answer your question. Feel free to disregard everything I say. 

Nonetheless...

I don't think a master's degree in history from Pittsburg State (not to be confused with the University of Pittsburgh) will get you very far on the academic job market. Of course, good work speaks for itself, and PSU may be better regarded if you want to stay in/near Kansas long term. But jobs teaching history (particularly at the college level) are very competitive and not terribly well paying. $18K per semester seems very high given that reality. 

But, I don't like your other option much better. Minnesota is a well-regarded school, but this is even more expensive and gives you a lower degree in another field with high supply and low demand. I do not know what the job market for "philosophical counseling" may be, but I suspect that it's also competitive and not very well paying. You could well end up spending $100K (or, worse, taking out $100K in student loans) to get this bachelor's and then a master's, only to end up with the same job you have now.

My advice is to calculate the full cost between now and graduation for both of these options, and weigh that against the (realistic) job prospects that these will open for you. You may well want to consider other options altogether. It is admirable that you want to go back to school, but I would really hate to see you invest so much time/money and end up without a viable path to a job.