Hello,
Just a few information to share (and probably a bit of translation duty because some information were not correctly interpreted I think)
Melun-Villaroche is a former military airport used for flying testing during decades, now hosting various associations and privately owned planes, so it could have a bit of confusion.
The AMPAA owns various planes, some of them are airworthy (Avenger, Storch,...) and some of there are restored to static condition (Lysander, B25 after its forced landing ,...) There are 2 IL planes : one is restored to fly and the second one as static but it's a long term project.
There is also various privately owned planes, including some warbird like the P51 "Nooky Bookie IV", P40 Little Jeanne", PBY
Various of these plane are operated by "France Warbird" an association of owners, it's why there planes, including the PBY is not listed in the AMPAA wesite.
There are also 4 Vampires based there: Unfortunately, 1 of them was completely destroyed in a fire few weeks ago, and a second one was heavily damaged, probably too much to be returned to flight)
As far as I know there is not F86 Sabre there: the Facebook post last summer was speaking about a newly acquired one who was planned to attend an airshow on the airport in last september. It's the ex Rich "Doc" Sudgen one, bough by the former french owner of the P51 "Moobean Mc Swean" (re-acquired as a tribute to Vlado Lenoch and now back to the US). The plan was to cross the Atlantic last year and be able to participate to the Melun Airshow in last september but bureaucratic issue (on your side of the pond
) occured. The F86 was dissassembled in last december and is in the process to be shipped to France. This F86 will not be based in Melun but in the South of France (Avignon)
Regards