I'm sorry but your post is asinine.
When someone has 8x the buy-in in a Zoom game playing an unorthodox style, we should draw inferences.
1) he has won $700 above his original buy-in (he could have reloaded but he still won $700 of pots).
2) he is comfortable playing deep
3) he is comfortable playing wider ranges.
I think it's fair to assume it is a fair assumption that he is a better than average player. It's really all I have to go on in 40 hand samples.
You say you are inexperienced in cash, I assume also in Zoom? A monkey could could amass a big stack in 40 hands playing Zoom. If you play more, I can assure you you are eventually going to see a giant stack do something ridiculously stupid, making you wonder how they could have a big stack (the answer is they do ridiculously stupid things but get lucky). I've seen mouth breathers with 10 BI stacks.
What would be meaningless would be constructing the "actual combos" of his range when I have no postflop reads and can't do it that quickly in game anyways. All I have are a few seconds to make some assumptions.
That doesn't matter. This is away from the table work that you should put in. It will help you formulate more accurate ranges when you are playing and have limited time if you analyze ranges when you do have the time. People (generally, not saying you in particular) often like to throw out stuff like, 'I'm targeting his weak made hands' or 'he's got some draws that can call' without ever thinking about what those actual hands are and what percentage of his range they make up. Which is important because it tells you whether it is wise to do whatever it is you're doing. You don't want to be targeting draws when they only make up 3% of his whole range for example.
I am inexperienced in cash though but I assumed his c-bet size was weak, so I raised.
If he had bet the "more standard" $4-5 or so, I would have been happy calling. Is there any merit to the idea that $2 into $5.50 is weak? There has to be, no?
It is too simple to look at a bet and think, 'weak. I raise!'. You don't know if he has a bet sizing tell. Plenty of people have a std size, and half pot might be his. More importantly, you have to think of what hands he bets, what hands he calls with, what hands he reraises with, what hands he folds, and what that does to his range on the next street.
None of this is specific to the action in this hand, but if you want to know how to figure out what the right answer to this hand is, it is worthwhile to do the work.