I think to max out your dollar here might be best to avoid a 35 and regearing as well as the aftermarket rear tire carrier bumper you will need to haul your spare 35in tire around.. The 42rle auto is so far undergeared you can probably just manage to tollerate a 33 with the usage of the aev procal which is a programer that will help you adjust a few things among them being shift points.
Discoverer Radial STT Cooper Tires DISCOVERER STT 33X12.50R15LT OWL 108Q
x 5 ($1000)
Match them up with a 15x8 inch wheel that has 3.75-4.5in of back spacing.. Now with that said not all 15x8's work do to the size of the JK brake calipers so you will have to find out which ones do.. there are a bunch of threads in here on the subject. Sorry I can't think of any specific wheels off the top of my head but did find some here Definitive list of 15" wheels that will fit JK?! - Page 2 - JeepForum.com
Should be now around 1500-1600 dollars between wheels and tires.
AEV Procal AEV Conversions 30406007AB - AEV ProCal Module for 07-12 Jeep® Wrangler & Wrangler Unlimited JK - Quadratec
I would take about ($100-$200) for a CB Radio set up as communication on the trail is very important.
So were at around $2000 now. Presuming you get $3500 that leaves $1500 left for some combonation of lift, winch bumper/winch, and armor you don't have yet..
Out of those 3 first thing is first since I guess you still have it in tact get a Evap Cansister Skid.. Trust me this is a pretty vaulnerable part of your Jeep and you don't want to be damaging it.
Evaporative Canister Guard - for Jeep JK Wrangler - Skid Row Offroad
I would also start to look at what else your factory skids aren't protecting.. like there being no tmk enginge trans skid Engine/Transmission Skid Plate - for Jeep JK Wrangler - Skid Row Offroad
($388) However unlike the the evap cansister skid which you should 110% get I would way this option against lift and recovery expense..
So lift.. Best not to be wheeling alone anyways so I'd lean twoards the lift to help clear those tires even though a winch bumper and winch is nice.. Look twoards a 2.5-3in lift.. this will alow you to avoid spending money on a new drive shaft.. What lift to get.. Well this is always fun..
Just a thought is the 3in zone lift 3" JK Suspension System
. There is a vendor or two here that sells zone lifts. I'd talk to one of them to make sure you get everything you need for a 3in lift on a JK among the options that come with the lift kit package as well.. Teraflex is another decent lift company that you won't totally break the bank on.. I'd research and take a look at their 2.5-3in lift as well. I know it's a wide range but bank on $500-$1000 for a lift.. Also not everyone has the ability to instal there own lift so labbor cost might come into play for you on this as well..
This is were I would start.. If any money is left over then other accesories like the winch and winch bumper can be looked at..