I'm no authority on Gore like some of these others but my 2 cents:
The boogie between Scissors/Pyrite to Tunnel isn't tough but it can feel pretty big your first time down. You can't see a whole lot ahead and there's some holes in there that could definitely knock you around a bit. That and you'll start thinking that tunnel is right around every corner. A guide is definitely nice to have your first time.
Tunnel can be (used to be?) a bit of a roll of the dice, either it flushes you out or takes you in for a beatdown but everyone I've paddled with believes that the first time you run it it gives you a free pass. Better to set someone with a rope below it and plug and pray. Obviously you CAN boof Toilet Bowl but if you mess it up the consequences are more punishing than you want to risk. IMO sneak, every time.
I've had a variety of lines through K-Bomb, I paddled it once with an OC1 boater, he did a lot of eddy hopping breaking it up, following him ended in me swimming. The next day I had my best lines just bombing down and reactionary boating the entire rapid, making sure to end left.
Have fun, stay safe!
"Paddle silently, boof loudly"