Game is still running on DGS so I don't want any advice for moves, just want to know how black is doing after joban/opening moves?

Both black and white are in 15-17 kyu range. It is a two stone handicap game. Position after black 70 at D5 is shown below.

Let's make it simple, what would you give black out of 10? I personally think it is 5/10, game is balanced.

I prefer black, but this is certainly very playable for white. At the 15-17k level, both players typically make several big mistakes during a game.

(Disclaimer: this is my kyu-level judgement, I didn't ask a bot for confirmation; BTW, Leelazero might not give an accurate answer since it's a game without komi.)

No it is standard 6.5 Komi.

Then since I am unable to tell who is ahead, I will give 5/10 to Black.