Jungle is the terrain I have the least life and/or combat experience in. However, real quick from your post a few things jumped out at me:
- During sniper school I remember what an instructor said and it stuck with me; a person with decent knowledge of the terrain can always get within 600m of a target by simply using nothing other than the terrain. In a jungle, I'm going to say that distance is MUCH closer. You don't need a ghille for it. I'd be more worried about leaving a metric ton of sign for pursuers/random patrols to find in that environment.
- Between the precipitation and heat, the suit will weight a ton and it will smolder you with heat and humidity of 1000000%. You'd be more than likely to die of dehydration or heat stroke from the suit before anything else.
- Best suit in a jungle setting (other than no suit at all!) would by far be natural vegetation because it will be everywhere and ever changing. A suit may pigeon hole you or actually make you stick out; if I did a suit in the jungle it would be at most 20% material and 80% available space for natural veg. You'd be much better served using something like a just 'hood' or lightweight blind like an umbrella with veg on it at your FFP than a suit.
- Ghille suits are rarely used. With the proliferation of better calibers/bullets that deliver higher energy on target with better ballistics, having to sneak your way into a 'closer' engagement range will only make them something you once read about in a book. I thought I was going to need it at some point and dragged the thing around with me for a few weeks until I realized that I will never use it. I instantly weighed less, didn't stink everywhere I went and also wasn't carrying a fucking ghille in a mesh bag on the bottom of my ruck around everywhere with me.
- They also like to catch on fire. And your wife won't let you, or the suit in the house.