Yeah, bear in mind, due to capillary action, there's a good chance, once the fuel starts flowing, it will continue to until the tank is empty!
Be gentle removing it because odds are the lines are seized, so dose them in WD40 and leave for a while, then come back to it. You don't want to bend the metal lines!
Again, on a K-Jet, if you open the boot, lift the carpet, you'll see a metal disc on the right hand side with 3 screws in it, this covers the lift pump for the tank. There's two hoses on it, send and return. Either disconnect both hoses, or unscrew the lift pump and lift it out the tank.
That way when you remove the filter, you won't loose too much fuel, and what comes out will evaporate off - just stay away from naked flames!
When reinstalling the filter, remember, it is directional, put it in the right way! Also remember, the system will need to prime again to get back up to pressure, so don't be scared if it doesn't start immediately.