Hi Liza-s,
Yes not many smells like JP5. It's been quite a few years ago for me but I still remember my team going to lunch. Me being a 5'4 120pd redhead at the time with red braids to my tuckus and my best friend similar but with brown hair and having guys come up real close to us in line like some guys do, only to draw back in horror at the smell, the whole team generally laughed our selves sick everytime it happened. Off couse we were marinating in it, often for 12 or 16 hour days as the company had planes celebrating birthdays in the hangers at the time, which is really bad. Also when you pull the foam to lay it out it is still wet. It takes a long time to dry out. Highly carcenoginic(sp) as well, but what can I say at that point in my life a paycheck was a paycheck.
  As to the decomp odors, I've dealt with those as well. Human as well as animal. Police dept and I grew up on a small farm in SC. I know you probably can't afford to do it but at the police dept nothing we knew of got rid of the smell. Those uniforms were often thrown in biohazard bins along with everything else from the crimescene. An you scrubed yourself with lye soap for the next week or so. As the smell just gets into your skin and hair and doesn't come back out for awhile.Everyone else generally sprayed lysol at you til you about choked to death. On the farm we had problems with poachers/bored kids etc. killing livestock and wild animals and leaving them as well or animals doing crazy things like getting caught in barbed wire and flipping themselves upside down in water troughs. With that my mom usually had us soak our clothes in old fashioned lye soap shavings in a tub for several days with much plunging up and down. Think plunger like an old style butter churn plunger,post with an x at the bottom. Or for a better reference point shaped almost like some coat trees. Then she would wash with regular laundry detergent but also add baking soda and a tablespoon or two of vanilla to the wash. Usually worked.