Big_Al, let me say, Welcome to you!
You're 30 years old...still a babe in the woods...no, you are not too old at all. In fact, if you read our forums, you will find many future nurses and current nurses going back to school...in their 40's and 50's. So, do not let your age hold you back. You are still young. How's that for some encouragement!
PA or RN?....Hmmm, the choice is yours, my friend, because they are both two different fields. However, many a PA programs are going towards the Masters level in order to make it more rigorous. You may want to check this out in your area. You can obtain an RN with either an Associates or a Bachelors. There may be some 3 year Diploma programs still left out there, but much has been fazed out.
So, it depends on you....your needs, your time line, and your ability to pay. If the military is footing the bill, great!...one less worry. I'm also ex-military. Uncle Sam picked up my BSN.
If you are single, definitely do it now....makes it easier.
Any way, I wish you the best in your decision...and in your career.