The schedule looks good but if you can, condense some of the days together like do back bi neck, and tri chest shoulders, to give you some rest throughout the week.throw in some core work
AA far as how to approach it all meta, it's up to you based on your goals. Just can't gain and cut at the same time. To gain that much strength you're gonna need to bulk and to bulk you're gonna put on some fat. Personally I'd cut first, but I'm more of an aesthetics guy. If you don't mind looking a bit fatter and you want to get that strength quicky just go for it, otherwise it's gonna be awhile before you get there
If you want to get stronger, do higher weights and lower rep and focus on explosive strength.