I don't really want anything to do with an old Ft. Sherman.
I'd take the other places though. Panama City, yes San Lorenzo and Devils Beach.
Qualified instructor ? I was, but I'm not going to bite this particular job at this age.
Yeah, sure you were....
Regardless of the moratorium of the concession (Which the OP originally posted back in 2010) of 10 years, quite frankly, I don't see it happening. Why? First of all, it would be a logistics glut of momentous proportions. Kobbe, Clayton, Howard AFB and the rest of the support infrastructure we relied on so heavily to keep Sherman up and running, no longer exists.
And even when it was there, it was still a huge under taking on a daily basis going back and forth from the Atlantic side to the Pacific side and back for supply runs, personnel issues etc. Unless a deep water dock harbor was built to accommodate shipping transportation inbound with supplies directly from the gulf (Most expeditious and cost effective) , along with the complete overhaul of the airstrip, you'd be at the mercy of relying on inflated pricing from either Colon or Panama City just to keep the basics up and running.
Plus, you're talking private contractors, who more than likely, would demand mega $$$$ to do the job. Between the rain season, black palm, gouging around at night under triple canopy, amongst bugs, insects, and animals yet to be classified, not to mention white faced monkeys (Capuchins) throwing their shit and pissing down on you from above, along with a whole host of other nastiness to numerous to mention, not really sure you could pay me enough to go back. And this is just JOTC instructor staff. Haven't even covered building retro fitting and rehab, the supply side of the house, medical facilities and staff (An absolute must) cooks, vehicles, mechanics, boat house personnel, pilots, A/C etc etc etc.
Plus, here in the present day of sequestration, budget cuts and a looming debt ceiling along with our national focus on SW Asia and the African continent, not saying it's not a good idea, but in all reality, will still remain a pipe dream. Again, I just don't see it happening.