For anyone that wants to have a look, I'm never actually going to finish this review. So, here's all the build pictures and the jokes I came up with for it.
BAG 1:
Hawkeye: Hey Cap, I'm here for the big fight.
Captain America: Oh, great Hawkeye, we're early, so you can help me set up.
Captain America: Now, if we work together here, we can raise this up quickly.
Hawkeye, why do you even need my help, Mr. Super Strength?
Captain America: Because the Super Soldier Serum didn't give me 4 arms.
Captain America: Are you sure it's a good idea to store our flames next to the fuel drums?
Hawkeye: Sure, I put our fire extinguisher there too. If anything happens, we'll be prepared.
BAG 2:
Spider-Man: I'm here for the fight! Ha ha, caught you arrow dude!
Hawkeye: Gross, I got some of this stuff in my mouth!
Cap: Look, Spidey, we get to the fight early to set up. Without that, we won't have lots of stuff to wreck. We're not ready to punch you yet.
Spidey: Oh man, sorry about that Katniss. Let me help you out.
Hawkeye: Wait, did this stuff come out of you?
Cap: When you two are done playing around, I think we should get started, everyone else will be here soon.
Spidey: my webs are a super strong polymer that is flexible and adhesive, but breaks down within a few hours so that the city's not just constantly covered in webs. Plus, it's cherry flavored, so can double as a snack.
Cap: That's very impressive son, but for now we've got to finish this truck.
Hawkeye: Unless you can spin a truck out of that stuff and save us the time to build it.
Spidey: Uhm, nope?
Spidey: Hey, you guys want to hear something funny? I'm not even old enough to have a license yet.
Hawkeye: Great, I've got underpants older than this guy.
Spidey: You should probably change them.
Cap: Can I just be put back in the ice?
Cap: Hey Spidey, help me lift this so Clint can put the wheels on.
Spidey: Hey Merida, can you get a move on? This thing isn't as light as it looks.
Hawkeye: It's lighter than your mom.
Spider-Man: That's not cool man, my mom's dead.
Hawkeye: She probably just left because she didn't like you.
Cap: Geez Clint, give the kid a break.
Spidey: You probably can't tell because of the mask, but I hate you.
Cap: Hawkeye, how long are you going to carry those lights around while we're doing all the work?
Hawkeye: Oops! You noticed that huh?
Hawkeye: All right, if you guys can lift these, how hard can it be?
Cap: Careful Hawk, lift with your legs.
Hawkeye: Eep!
Spidey: Ha ha!
Spidey: You know, I think Tony Stark has a robot or something that can put this thing together faster. Gotta bounce!
BAG 3:
Vision: I don't understand why Tony told me to come here early.
Vision: There appears to be a lot of things that were put together wrong. I think Mister Barton must have been involved.
Hawkeye: Hey metal man, what did you mean by that?
Spidey: He meant that you're bad at your job Speedy from CW's the Arrow.
Cap: Because Speedy's a female archer?
Spidey: Yup.
Vision: Alert! There is a fire due to Mr. Barton's ineptitude.
Spidey: Don't worry, I'll smother it in webbing!
Cap: Are you sure that stuff's not flammable?
Hawkeye: I hope it is.
Spidey: AAAAAHHHHH! IT BURNS!
Cap: I've got the fire extinguisher.
Vision: I'll use this cover to smother the flames.
Hawkeye: I don't feel so good, are you sure those webs are edible?
Hawkeye: I'm dying because Spider-Boy shot poisonous webs into my mouth.
Spidey: Listen Dorkeye, I eat that stuff all the time,and I'm fine.
Vision: I believe that you are fine because you have mutated spider genes and can process elements that Mister Barton cannot.
Spidey: I thought that Dorkeye's mutated Dork genes could handle it.
Cap: Come on Clint, suck it up. I've seen you pour Twizzlers in a bowl with cherry cola and call it cereal.
Vision: I don't know why I deal with these people. Not a single one of them is logical.
Finished shot: