I definielly agree with idea to have also "alternative" possibility of TakeOffWhat about this to get going so as to conserve battery life for later?
Static ropes or lines made with Dyneema® will within a few years replace steel wires in the glider business since it is both easier and more economical.dynamica-ropes.com
TOST tow hook should be installed in the front.
I can imagine aerotowing and maybe also "car tow start" - every "externally added energy" will save battery
I am only not 100% sure about winch start.
I beleive that every glider pilot has experience with aerotowing. However not every glider pilot has experience with winch start and winch start emergency procedures.
Also.... I have feeling that better position of tow hook for winch start should be near CG (but I have experience only with L-13 Blanik winch start = not enough experience to make general conclusions).