Have you thought of a few people sharing motors? After they buzzed Bath, I found and met 5 or 6 paragliding blokes from around Bristol who do this with 3 (solo engined) motors. It seems to work very well for them.
They took turns with short flights then longer ones knowing there was always somone on the ground to help launch, retrieve and drive back from the pub! They had a quicker turnaround and fewer failed launches than a group of people each with ther own motor.
It is great to have the skills and take the time to carefully do it all on your own, but maybe better to have safe help. The bonus is they appeared to get more flying and for less cost. Gliding is usually shared or syndicated, it seems odd that we don't.
If I was starting now, I would look for a few mates and share a few motors.
I have thought about this option and Dave (outkast) has kindly offered me use of his motor until i purchase one. I think its a good idea if maybe paragliding is your primary sport? that way you can take the paramotor up as and when but i like the idea of flying with my mates etc. There may also be an afternoon in summertime say when im free and availiable to go flying but one of the others in the syndicate has the motor and i cant get to it?
Certainly them first few hours after the first flight i can see the benefits of having someone on the ground ready to help should it be required.