First of all. No one knows what this bro looks like. I know people at 5'10 at that weight that look damn big. Its all about proportions, symetry, bone size, waist size, muscle bellies. Bodybuilding is about illusion and perception. Good luck with the show. Each show you will no doubt improve and come back a few lbs heavier. I would say to anyone who hasnt done a show to not judge this bro. Im sure hell have some pics for us after.
As far as ketossis...i beleive Glucorel-R ( R-ala) will put you there real quickly...thats what i used once. Maybe Macro can shed some light on the exact doses etc. Its been a while since ive cut.