The uniform is very very simple. So, here's a list of WHAT YOU NEED:

1. A flight suit
2. White, iron on patch
3. 4 knee pads (matching)
4. Combat boots
5. Black gloves

NOTES ON EACH:
#1 - In each film they use a tan/khaki colored uniform. Any gov't issue color seems to be just fine. I mean look at the cartoon. Anyway, make sure you take a look at thrift stores and on air force bases. The suits are fairly cheap when used and flame-retardant.

#2 - When you get an iron on patch, make sure it's a square. Next, you'll want to take black and red permanent markers to make the ghostbuster symbol on the patch. Then just iron it onto your suit once you're done.

#3 - The ghostbusters wear brown knee pads on their elbows and knees. So, this is at your own discression.

#4 - Combat boots. Some people have some, some people will have to get some. If you have to get some, try thrift stores or try getting them brand new.

#5 - I noticed that they have black gloves. You can go into Fred Meyers or Walmart or Kmart or someplace like that and usually find black gloves. Look in the house cleaning isle and the auto isle.