Ahem. YLIL - YBCV (via YBKE, only a couple of miles off track) is 677nm.
Want to run those numbers again! Oh, and you really should add a bit for reserves too!
ps
I'm glad to see your method now includes what you learned earlier today from being held to account for your lack of knowledge on the subject. You're getting there….. but very slowly..
pps
the "assumptions in my theories favour" gave me a little giggle too.
ppps. The figure of 220 nm short I gave earlier was just a spur of the moment guess, but I've since run some more realistic burn figures including climb and taxi burn and it came up with 211 nm short. Sorry about that sloppiness.