Ron,
Great thought starting this thread, but might I suggest that the folks you want to introduce to GA are really some of our young enlisted troops and non-rated officers.
I'm the typical learned to fly when I was 16 guy and have had a great aviation career, including 22 1/2 years flying fighters and am fortunate enough to fly for an outstanding airline...so I've been in the grass on all sides of the hill. The military aviators that enjoy flying will be able to find their way to GA if they haven't already done so. None that I know would be reluctant to post a request for some stick time on this site, and I'm confident that plenty of folks would answer with an offer...I know that when I had a fighter to fly, I owned a sail boat for recreation--no need for an airplane at that point in life! The RV-4 didn't become part of the family until after I retired from the USAF.
One of the critical issues facing GA (and flying in general) is a distinct shortage of folks that want to learn to fly. In the next 15 years or so, it's likely that the pilot population will decrease by half. Our young troops aged 18-24 may be a much better target audience than your typical military aviator. These are the folks that will form the backbone of our units and our society in the future, so they are the group that merit the most mentoring and experience. If they are interested, there are venues for further education opportunities (including the GI Bill) for them to pursue training.
Having been afforded the privilege of command, it has been my experience that if you focus on this group, it will pay big dividends.
Having said all that, if you know a military aviator that you want to expose to the mighty RV, by all means do it! I know that the RV-4 is just about as much fun to fly as an F-15C, and, in some regards, even more...any aviator that is passionate about flying won't be anything but impressed when they get a chance to strap on an RV of any type...
Cheers,
Vac