An absolutely amazing thread. Calipers, tape measures, hydrometers, slopes, winds, drive trains, instrumentation, ad nauseam... nits are being picked. The answer gleened is the RV-7 posited could use such a strip. Barely. Unfortunately, the RV is being driven by a fallible human, who sooner or later is going to screw up for having one moment of impaired judgment. Hopefully, you'll have a change of underwear handy. Then you'll be wondering what was so precious about that property in the first place.
I've operated in and out of hairy strips with many types of aircraft (including RV-7s). That is not fun flying. Call me chicken, but I would rather have a little more margin for error on my part than expect to be perfect every time, and look forward to the flight with no apprehension.
It takes a pilot to ruin a perfectly good airplane.
John Siebold