Agreed, paragliders are fickle beasts at times. Learn to fly one properly and get 200 hrs under your belt before adding a motor. If it all goes horribly wrong, you don't want to start learning how to deal with it on the way down with an engine on your back. Practice until forward launches, reverse launches, cross brake launches, in-flight collapses, cravattes, full and asymetric leading edge tucks and stalls become second nature. Get yourself a copy of the "Safety In Flight" video by Jocky Sanderson and watch it all the way through before you spend a pound on anything else.
Once you have done all that, you'll have a great time
