I'd echo most of what's been said already. My current setup is around 5" total and it was all moved over from my previous 80. That old 80 was purchased with OME mediums (2.5" lift), there were no bumpers etc to add any weight at that time so it fit 35's just fine. It already had adjustable panhards. As I added bumpers etc the OME mediums weren't adequate. I am currently using OME J's, L shocks and 2" spacers.
I agree that once you get beyond 3" you should be planning on adjustable panhards, caster correction (if it's not already taken care of) and DC driveshaft in the front at least.
Since you asked specifically about cost, I think you can get close to your target cost if you're willing to go with some used parts. I picked up my J springs used and they cost me $25, but that can fluctuate depending on the seller. These springs have seen lots of use in the 8 years I've had them so I wouldn't be too concerned about getting used coils.
Shocks are another story. You can also get used shocks but it's not something I would skimp on. Make sure they are in good condition with no dead spots in the stroke if you buy used. You're better off going new.
Caster plates are pretty cheap to begin with but could be even cheaper used and there's little to no risk involved with used vs new here. Could save you a few bucks.
If you can weld and modify panhards on your own, buying a set of adjusters instead of complete panhards can save you some cash as well.
The big ticket once you get beyond 3" is going to be a DC driveshaft. You could probably get by for a little while with the stock ones, but you'll develop vibrations that will need to be correct with the DC shaft. You're $500-600 here alone and if you buy new shocks you can add another $400 minimum and you're already getting close to the low end of your budget. So while it can be done for ~$1500 you'll be making some concessions in certain areas to pull it off. So I'd plan on budgeting closer to what others have said.
I agree that once you get beyond 3" you should be planning on adjustable panhards, caster correction (if it's not already taken care of) and DC driveshaft in the front at least.
Since you asked specifically about cost, I think you can get close to your target cost if you're willing to go with some used parts. I picked up my J springs used and they cost me $25, but that can fluctuate depending on the seller. These springs have seen lots of use in the 8 years I've had them so I wouldn't be too concerned about getting used coils.
Shocks are another story. You can also get used shocks but it's not something I would skimp on. Make sure they are in good condition with no dead spots in the stroke if you buy used. You're better off going new.
Caster plates are pretty cheap to begin with but could be even cheaper used and there's little to no risk involved with used vs new here. Could save you a few bucks.
If you can weld and modify panhards on your own, buying a set of adjusters instead of complete panhards can save you some cash as well.
The big ticket once you get beyond 3" is going to be a DC driveshaft. You could probably get by for a little while with the stock ones, but you'll develop vibrations that will need to be correct with the DC shaft. You're $500-600 here alone and if you buy new shocks you can add another $400 minimum and you're already getting close to the low end of your budget. So while it can be done for ~$1500 you'll be making some concessions in certain areas to pull it off. So I'd plan on budgeting closer to what others have said.