The process for getting on as a CFI at FSI is extensive. The recruiter does very little, you have to talk with Connie Filipe, the person out on medical leave. Don't know who is handling the process for her now.
After your resume gets to her (or her stand-in) she will set you up for an interview. For folks,like me, coming from the outside it is a week long ordeal. And I do mean ordeal. (But its worth it.) Day 1, Monday you take a 100 question test and attend a 30 minute briefing about how to make the presentation that you will do (probably Wed). The test is just from the FAA CFI test bank. No biggie. Day 2 is an interview with the center director and the #2. Day 3, Wednesday, was the presentation. Mine was 8's on pylons. Kind of tough teaching a maneuver to a pannel of 4-5 senior mgmt/CFII's. This step is where most folks have problems. Thursday I practiced in the Frasca 142, and Friday I took a sim eval. The sim was set up as a Seminole and I did two approaches, one with an engine inop.
OK, now if you pass the interview, the presentation, and the sim eval you are conditionally hired. You are not actually an employee until you finsih your CFII (if necessary) and single engine standardazation. The CFII training was great (like all training at FSI). Standardization is a 3-6 week hazing process.
Hope this gives you some insight. I decided against ERAU because of negative comments from previous students about instructor life and the $10 per hour thing.
Oh, and on the airspace issue. VRB isn't as bad as DAB, but its certianly crowded.