Have fun with the K1. Very nice kit as well, I speak from experience since I owned a K1 for a few good years myself.
If I've done my math well, 800 US translates to a generous 500 GBP. Plus VAT (20% in G land) amounts to about 600 GBP. There will be a dealer mark-up of course. Hopefully they will make me an offer lower than 800 GBP, but am not holding my breath