Actually now that you have told us what your looking to do we (ummm more experienced) Jeepers can help you make up your mind.
Now please do remember that opinions are like A-holes. Everyone's got one.
Only you will be able to decide what works for you.
The first thing a lot will tell you is to go big cause after you start that's where you'll want to go.
I'm a bit different. I like the LCOG school. Low Center Of Gravity. I am running 33 inch tires on a 4.5" lift and I am looking to bring it down to maybe 3.5" I'm going to a modified long arm system but that's in the future.
Right now I'm having fun where it is.
You will probably have fun too at 1.5" but if you want to run 31's you'll at least have to go to 2"
This can be done quite inexpensively using JY parts or even low cost new. Then you can buy a complete kit which will get more expensive.
Your stock steering can handle a 2" lift without a lot of expensive new parts like adjustable track bars fixed or adjustable control arms and spring packs and longer shackles.
In fact if your current rear leaf springs are in good shape a coil spacer and a longer shackle are about all you need. Plus an alignment after.
If they are too tired, don't use an AAL (add a leaf). It's a band aid. And all band aids have to come off sooner rather than later.
Do spring for the OME 2 inch medium duty spring pack. Worth every penny and will last you a long time. You can add a longer shackle later if you need more height and you won't run into having to relocate you shackle mounting point like some of us have to do with the taller leaf packs
You can safely go to 3 inch coil spacers with out steering modification. After that (3.5 -4.5") you need things like an adjustable track bar, longer lower control arms and a drop pitman arm. This starts to get expensive and in mechanically inexperienced hands can cause you a lot of grief in Death wobble and bump steer.
I know that's a lot to read but it's just some of the things you'll need to make some informed choices or get you to ask more questions.
The only stupid question is the one not asked.