I'm looking for an old Minecraft series (youtube) I forgot?

This is going to sound weird, but I just had a sudden urge to be nostalgic as I'm going into my school exams. There was this series on Minecraft around the time of late 2010 to early 2012. I didn't know how youtube worked back then and never made an account so I just remembered all of the people I liked by name, but there was this one that I forgot and never remembered and was wondering if anyone could help me out.
From my lacklustre memory, what I remember is that

- It was a male
- It was played in creative mode
- the whole preface for the series was that he was building a lab that had a whole bunch of stuff in it.
- the build from the outside was stone bricks
- it had a heap of episodes
- it was family friendly enough for 7-year-old me
- he was hella enthusiastic about it (i don't know if this is common or what…)
- the build itself was rather large
more vaguer points that you might want to take a look at

- In the distortion of my memory, I remember vaguely that it had an entrance/area to the front that was a minecart rail that led to the entrance
- he used Lapis as a sort
- there was a room where there was an observation deck over this area of fake terrain, further, I specifically remember him doing 360s off of the centre of the observation deck and yelling out "360"
- there were rooms for observation of mobs (little glass cages with one in each) and he pretended to use Lapis to see the effect on spiders or something.

will update if I remember more

thank you!

Added (1). extras

- don't hold me accountable for this, but the series might have come under a let's build? I'm not too sure…

Added (2). - sorry for the vagueness from before but the rail system was a fake that was no more than 150 block longish. It was just to replicate "going to work"

- i also remember there was an episode where his voice recording software broke and he said that unless we wanted to watch a video without audio, he wouldn't be showing it or something along those lines

Added (3). - the block that was used to make most of the build might have been iron blocks, I'm not sure~ will try and remember more

- the fake terrain included a forest and a snowy place

Added (4). - another random point I remembered is that there was this office thing but it was hidden with a lava stream and to get through, you had to click on a minecart and then you would be on the other side when you got out of said minecart

Added (5). IMPORTANT with further research I have found that it may have even been a little bit earlier than late 2010
i would say late 2009 is the furthest back i can see me watching this video

Added (6). IMPORTANT with further research I have found that it may have even been a little bit earlier than late 2010
I would say late 2009 is the furthest back I can see me watching this video

- there was no face-cam in the videos
- it wasn't on a server or anything, just him building and stuff

it has legit gotten to the point where I'm willing to give a reward to someone who can find this man. I can't stop thinking about it!

Added (7). Important
- there was no face-cam in the videos
- it wasn't on a server or anything, just him building and stuff

it has legit gotten to the point where I'm willing to give a reward to someone who can find this man. I can't stop thinking about it!

Maybe it was Scar?

I thought Minecraft didn't even exist in 2009? Or nowhere near popular than it was\is now?