Here, try this
Mud Rovers 235/75/R15: $350 shipped to your door fromtirerack.com
Coil Spacers: $76 from rocky-road.com and then flip your bearing plate for free.
Bumpers+Skids: $50 Bribe a friend or relative to weld you up some shizzle for new and protective armor.
RTV: $8-10 from AutoZone use this to seal up your coil, distributor and MAF sensor for splashing/submerging in water/mud.
Shop-Vac hose: $1/foot from home depot, use this to run from your MAF through the firewall into the cab and up the window pillar seal up with RTV--snorkel!
Air Filter assembly: $13 from AutoZone, they have an assembly that will easily fit on the end of the Vac hose once you've eliminated your air box. DO NOT, REPEAT, DO NOT BUY ANY SORT OF PERFORMANCE FILTER, it'll get dirty and shut you right down. a little lawn mower filter on the end of your snorkel is good.
Seat Covers: $50 for a set of canvas/waterproof/washable ones from AutoZone, now you can go through the heavy sh*t and you'll need to toss 'em in the wash so you can drive the next day
TOTAL: $556 Still way under your $1G limit, now go grab your friends with 1500's and Wranglers and show them you can go anywhere they can and then some for 556 bucks, they'll be Zukin' with you in no time
Now to appease the performance guys, since you've got some left over shrapnel in your pocket. Keep in mind what i've listed above is by far more important, your Tracker has about 76hp stock, so the headers add 4-5 horse and the rest add like .25 horse.
Thorley Headers: $194 from rocky-road.com
Bosch platinum spark plugs: $24 from AutoZone
MSD Blaster coil: $50 from, say, a JEGS catalog
Super Turbo muffler: $18 from the same JEGS
TOTAL: $286
GRAND TOTAL: $842+$20 for some Miller Lite's=$862[/u] for a solid, ready to go ride
Real_Red_Wagon has done all this to his Tracker(exept the headers 'cuz he's got a 16V) on the LMS cheap-as-free budget, while I drank beer and pitched in when necessary. He'll have a insightful response to follow, when he gets a chance.
Hope this helps, I'll be happy to see some pics when you're all done. Good to have another Zuk out there!