You are welcome, either the Riser or the Gentle Lady are an excellent first start. For those may I suggest if you look for used servos a better type of servo to look for are not the so called standard sized servo which will work but instead 'mini's' Hitec has an excellent little guy called the HS225 and Futaba has an equivalent also. These types of servos are out there to for not to much especially used. This class of servo will serve you well in all the gliders you mentioned and being a little smaller will greatly simplify the installation and make life easier.
John