Hi Eddie,
As a BHPA CP Pilot, you will only be covered for 3rd party to Paraglide. For your insurance to be valid with them to Paramotor, you will need to do a 'power rating' and your 'pilot rating'
As it stand's I think CP pilots are insured to fly not more than 5-km away from an instructor. One has to be pilot rated for this.
Also, as an existing BHPA paragliding pilot, the PMC system allows for you to get our insurance immediately. Although we do like to 'assess' a little first, as we have found many, in fact most of the CP pilots require a couple of days to find a happy place and feel confident.
Another point to note: There is no legal requirement for you to be insured (assuming foot launching) but it is of course the sensible thing to do
SW