On Friday, October 16, 2015 at 11:30:05 AM UTC-4, Justin Craig wrote:
Buy a good 19!

LS1 you will need to pay the DG tax.

No need to say anything about the Pik.

Good comments all, thus far.

Out of your list, I feel the 19 would be the best out of them. Good support, easy to fly (winglets can help here on the low speed side, Nixon/Murray tips seem the best) and decent performance. Similar would be the Pegase 101 (French 19).

They are all older gliders, so reasonable finish (slight crazing is almost a given, deep cracks will require an expensive refinish) is worth looking for.
A "factory" type trailer is also desirable, some "cobbled together" trailers can be a real PITA do deal with and may raise the chance to damage the glider.

Welcome back to the sport. ;-)