When I was last looking for (less dangerous) travel insurance, I found a lot of companies seemed to have about 20 websites apeice, with near-identical sites and totally identical quote backends - and there were several which really did appear to be different companies but still had the same backend.
I guess a bit of a problem is the paragliding bit; there must be some specialist paragliding insurer who will extend this to international cover - probably a lot safer (especially if there's a problem) than a general travel insurance company who has no idea about paragliding. Any clubs that provide insurance?
Hugo