What I Want

I want an airlock. If it were up to me the doors would go up into the ceiling (like the doors on the Death Star in Star Wars.) There would be a door which leads into the lock. The lock would only be about 4x6 or 6x6 width and length. There would be a second door to the outside. Beyond the second door would likely be a bluescreen.

And I want maybe forty or sixty feet of additional hallway/corridor. Pricing out some materials it looks like it'll be about... um...

Well these spaceship sides are only $2.38 each. Two of them make an 8-foot high wall section. But that section is only... 18? inches wide (once you overlap the little "wings" on the side). Then you need the vertical pieces of wood(?) which will hold up the frame. I'm thinking we might go for pieces of PVC and staple the sides to the PVC pipe. The 90 degree elbows are 48 cents each and if the pipes themselves are about a buck(?) each then we're at about $8 for each section (once you include tax.)
So three feet is about $16. How many feet did I say I wanted? Eef. 20 sections will end up costing about $320. We better be able to make a lot of movies with these corridor pieces...