1) That sounds like a good protein target
2) I wouldn't worry too much about meal timings initially (but I know nothing about nutrition)
3) 6'4 isnt super tall, so i dont think you'll have a problem provided your proportions arent stupid.
4) If you have previously maxed out your bench at 300+, dont be afraid to start that higher. Is 135 really easy for you (there's no question mark on this keyboard... but that was a question (
)
5) Your deadlift will probablly get up to 135 quickly enough, but in the meantime, you could consider putting some plates down to increase the height of the bar or setting the safety pins on the lowest setting in your squatrack/cage and deadlifting off that.