A 3 inch spring lift is going to cost you. A 2 inch spring lift & 1 inch Body lift is less than half the price. I included some abbreviations some people may use.
2" springs (SL)
1" body lift (BL)
1" Motor mount lift (MML)
The springs can be swapped out for a 2" budget boost (BB) lift kit for much cheaper but if you are going to do any hard offroading I would recommend a full length spring.
The body lift will make room between your drivetrain and the floorpan of the jeep, therefore making you one step closer to a flatter skid plate on the bottom of the jeep if you ever wanted to go in that direction.
The motor mount lift will help out with driveline vibrations caused my the increase in the angle of the rear drive shaft. By increasing the height of the motor, it tips the entire drivetrain back.
As for tires I would recommend the 33x10.50" instead of the more common 12.50". This will help your mileage too! Also, that way you could reuse the stock wheels too. I would not go any wider than 10.50" without a 8 or 10" wide wheel.
TIPS - 2.5" and up and you will probably start needing adjustable track bars, transfer case drops, (CV) driveshafts, (SYE) slip yoke eliminators, or lower control arms at the least. Also, beware of the rear axle, the dana 35 the X doesn't have a great reputation for tires larger than 31 inches in the offroad world.
PS. I have a 2004 x