prison?

What are the pluses and minus of working in a prison? You see, I'm an LPN and worked at a local jail for a little over a year. It was very stressful with the intakes everyday and occasional emergencies. I thought I started to get in the groove at about the year mark, but got let go do to various reasons, but officially budget cuts. Now I work at an assisted living facility on 12 hour night shifts. This is actually the first job I ever had that I don't dread going to work most nights (unless we are short of aids for the night and it happens a lot). I would'nt mind staying there, but the pay just isn't enough with all my bills and being single. I have a PRN job at a nursing home also, but all the openings the past month have been either the same days I work at my main job or 1st shift which I can't do after working 12 hours. So this staffing place called about a job at a prison down in Lima that sounds like I would make at least 30% more and that's including the bonus I should be getting at my present job. But it is about an hour drive so that is also a factor. What do you guys think I should do? btw my present job offers very limited raises and practically no benefits, but the work is easy.
The way I see it I either need to try the prison job (if offered) and look for a place closer eventually or try to pick up another PRN job and maybe also move to the town I work now, which is only about 20 miles away, but my family lives in that town and I think I can find a more affordable house there. I hate to move now as I only have 19 years left on the mortgage here, but the house needs a lot of work I can't afford to put into it and the taxes are getting ridiculous and are way too much now. Plus the water is very expensive here and gas bills are crazy in the winter for a fairly large 2 story house. I thought about a roommate, but not really feasible with my hours, cats and the way the house is set up. Any advice as to whether the prison would be fairly safe and how stressful?