FYI - Just incase someone wanted these in the future.
As for the hose you could rip the vacuum one from the tank to match at the shops get one to replace the existing hose too
I would replace the rubber caps and circlips on 2 & 3 inlets, pretty cheap to buy but hassle to get if you break it on the day when balancing
M5 Washer (Washer 5mm) 90452-323-000
http://www.cmsnl.com/honda-cbr250rrl-mc22-japan_model14665/washer-5mm_90452323000/
Inlet Port Vacuum (JOINT BOOST) 16214-MB0-000
http://www.cmsnl.com/honda-cbr250rrl-mc22-japan_model14665/joint-boost_16214mb0000/
Rubber Cap (CAP,BOOST) 16215-MV4-000
http://www.cmsnl.com/honda-cbr250rrl-mc22-japan_model14665/cap-boost_16215mv4000/
Cap Circlip (Clip B7,tube) 95002-020-70
http://www.cmsnl.com/honda-cbr250rrl-mc22-japan_model14665/clip-b7-tube_9500202070/
4th Cylinder Bolt Plug (BOLT5X8) 92301-050-080A
http://www.cmsnl.com/honda-cbr250rrl-mc22-japan_model14665/bolt-recessed-5x8_92301050080a/