Good News - I got the throttle cable mounting bracket from Weber!

However, I could use a little help/advice. I've got the new carb in place but I'm a little confused as to what goes where when hooking everything back up - my apologies for being amateur hour! Here's what I'm looking for some help with:

1 & 2 (circled in red) - Just want to confirm that these can both be removed
3 (circled in red) - This either needs to run into the plastic inlet on the bottom of the new air filter or put a breather on it, correct?
Attachment 13275

4. This definitely looks like coolant but I'm not sure where it hooks back up to the new carb? Maybe nipple in pic#6?
Attachment 13276

5. I'm pretty sure these are the fuel lines that are coming out of the bottom of the manual fuel pump, correct? If so, I only see one area on the backside of the carb (closest to firewall) where I would hook up ONE, not both. I have read several people discuss these carbs NEEDING a fuel return - can someone offer some guidance here??
Attachment 13277

By feel, this is what the two hoses above are coming off of and what I believe to be the manual fuel pump, correct?
Attachment 13278

Most are familiar with this, but I've got 3 ports on the back of the carb. Bottom side is plugged (based on instructions), one male end to connect the fuel line (right?), and one female side not threaded (not sure what the purpose of this one is?).
Attachment 13279 Attachment 13280

6. What gets hooked up to this nipple (circled in red)?
IMG_1609.jpg

7. What is this and can it be removed? I've seen people plug the hole, but can I remove it entirely and use a block off plate?
Attachment 13281

A ordered a chilton manual for the truck but it's still not here, my apologies for asking some of these newb questions that are probably covered in the manual. And since the weber instructions don't feature many images for reference, I'm doing my best!

Thanks in advance!