Hi I am from Canada, so it is a bit different here. But, it sounds that you are doing the right things. If you cannot move for some type of internship program or job elsewhere, then the surgical-technologist route sounds to me, like it would be a good asset to you. Something you can use when you find that OR RN position.
It may be beneficial to get a casual RN job while you are in school though, working part-time or casual, is alot less stressful then full time work especially in an area you might not like that much, and current RN experience with good references would help support your resume. (Not saying that is has to be med-surg either.)
Do they offer RN OR training programs through community colleges in your area? If they do, this maybe a more direct route.
Just remember either way, the learning curve for OR is tough & can be very stressful, the environment can also be intense & hostile at times so you need to be prepared for this. Take care of yourself first, this is your #1 priority, you are your own advocate in nursing, and you need to be in balance to be an effective care provider to others. Do not let yourself get to the burnout point. (From experience, you & your family are probably familiar with the warning signs, so be aware.) I don't know how to help, other then offer support to you. You sound like you are actively trying. I believe that perseverance does pay off eventually, so keep it up. Good luck.