Hey C.W.,
You should first check with the Swiss laws about PPG - electic PPG may be ok. Paramotor - English Forum Switzerland As for your wing, I would be cautious as a new PPG pilot even if you have a long experience PG XC. PPG is not exactly the same. All PG wings can basically be flown with an engine, but there is a difference between landing with a smile on your face and a wet t-shirt from cold sweat running down the back of your neck after a flight you did not enjoy. You want a bullet proof glider with a lower aspect ratio for peace of mind. The attachment points risers/frame (PPG) are not the same as risers/harness (PG). Your glider may not react the same way you are used to anymore. As for the all up weight, considering that you probably live higher over sea level and you would add 50lbs or so with two 4 Bonka at 6lbs each + harness and frame to your own weight; your will likely be flying like a rocket (density altitude) with a total hooking weight over the factory maximum recommended numbers. A full reflex glider will not be as efficient in thermals as your Sigma - they are not designed for that. The ground speed with some reflex gliders can be impressive and to be aware of. Here is a pilot with an ITV Billy, one of the fastest out there without overloading the glider while staying withing the normal glider size for the pilot’s weight ITV Billy - YouTube
I would suggest you stepping down to a dual purpose PG/PPG glider certified in both categories. Here’s a dual purpose semi-reflex glider EN-A / DGAC glider and as you will see, it is pretty lively in expert hands Boxer Gt. PARAMOTOR.ITV. SKYRUNNER.PARAGLIDING - YouTube
I hope that helped. Happy holidays!