What attachments are there for the tail fairing on the F? My old 94 GS you could just undo the grab handle and pull it off. I undid the allen heads and the clips but it won't budge, it's like it's attached at the tail light as well.

Are you wanting to remove the grab handle and all the rear plastics or just the handle? From the looks of this, the grab handle appears to be held on the same way from E to F:
https://www.motosport.com/motorcycle/oem-parts/suzuki/2007/gs500f/seat

I'm not sure if looking at the diagram would help you at all (it has helped me with a few things in the past) but here's the one for the plastics...
https://www.motosport.com/motorcycle/oem-parts/suzuki/2007/gs500f/frame-cover-%28model-k7%29

Once the grab handle is off, there are two small bolts holding the plastic panels at the top and the two pins in grommets each side. Spread each side out to clear the grommets and the whole unit will slide backwards over the tail light.

Oh, and the seat release cable has to be detached as well. Sorry, am going by memory here