Diet and phases questions

[Snowbat]

Ok I need help guys and girls.
I calculated my maintenance amount of daily calories. According to several calculators, it's about 2600. From my own experience, the past few months, I've not gained or lost any weight and I ate approx 2700 kcals per day. So lets say that my maintenance is 2600-2700 kcal per day.
My new diet holds 3300 kcal per day. But it feels like something's not right about it when it comes to the amount of protein. It seems a little high.
Here's an overview:

+/- 3300 kcal and +/- 210 gr of protein. That's a surplus of 600 kcal per day approx.
I'm either making some ridiculous mistake in my overview I'm overlooking or I'm misinformed but the amount of protein seems high no?
I'm male, 6'3 for 178 lbs and I'm 30 years old. I lift 3x a week and go climbing once. So this is 4x intensive sports session per week. What would be my protein need?
Secondly, I wondered if it was needed to take protein shake every day, even on the days I don't work out?
Also, can I continue to do some cardio too on the days I don't lift weights? What's best? normal cardio or HIIT?
Next question, somewhat bizarre, lets say I come to a point where I'm happy with my body. I don't want to lose anything nor to gain more.
What do I do, continue to workout but stay on maintenance level kcal per day? Stop working out? Work out less? I dunno.

And then finally, at a certain point, I'm gonna try and shed the little subcutaneous fat I have under my belly skin. When you shed fat, do you stop weight lifting and start eating less? Won't I lose any muscle if I do that? What cardio is best in that phase? HIIT or something else?

Thanks guys!

 

[nspaletta]

Actually I would still say your protein levels are low. But what are your goals? Bulk? Lean bulk? Either diet consists of something different and different ways around it. If you are doing cardio your maintenance calories will be higher then 2600...and if you are looking to bulk your protein to calorie ratio is only 20% protein. If you could describe what your goals are a little bit better maybe I can help tweak your diet a bit.

 

[Snowbat]

I think lean bulk is what best describes it. I don't necessarily want to look like Arnold Schwarzenegger in his best days, but just lean and more muscular than average. To come up with a silly example: take Ryan Reynolds in Blade Trinity. That's more or less what I'm after.
I said "silly" because I know that these guys have the money and time to hire the best trainer and take the best supplements so it's probably nearly unattainable for a mere mortal like me but it gives you an idea. Not like the Hulk (I'm a rock climber so a bodybuilder's physique is probably gonna hinder the climbing), but still more muscular than average and lean. I think it's pointless to have muscles and have them covered by fat.
If you're interested in my routine, I posted it a while ago in another thread:

My routine:
3 full body workouts per week. I always do 3 sets of each excercise. The added weight on my sets make it so that I stay in the 6-12 rep range.
What I do:
- Overhand pull-ups: 8-6-6
- (Tuesday only) Weighted push-ups with feet elevated, 12-10-9
- (Saturday only) Weighted dips, 12-10-9
- Weighted split squats, 12-12-10
- Dumbell bench presses: 12-10-9
- Dumbell shoulder press: 12-10-9

Since I feel like some smaller muscle groups are not getting a thorough hammering with these, I also do some isolation:
- Hammer curls: 10-8-7
- One legged weighted calf raises: 12-12-10
- Wrist rollers: 3 reps, one rep being rolling all the way up (using the "back-side" of the forearms), back down, back up (using the "belly side") and back down.

You may have guessed, I do these at home. I have a set of plates and dumbbells as well as a pullup bar an dipping bars and of course, I increase the weight when it becomes too easy within the 6-12 rep range.
A week for me looks like this: lifting day - rest day - lifting day - climbing day - rest day -lifting day - rest day.

I'm naturally skinny. Plus I have that disorder where your chestbone sticks out a little (also known as Pigeon Chest or Pectus Caritanum to use a fancy word) so I really want to look more muscular than average because not only does it "hide" the pigeon chest, it also makes me... well not skinny any more. Would probably boost my confidence a little.
Thanks!