In my opinion a body lift and a coil spacer lift together would not be wise.
To successfully clear 33's you need 4 inches of lift. From what I understand, with the coil spring spacers you won't be able to do a belly up kit. Which will get your transmission up flat with the frame .. about $150, giving you mondo clearance.. belly wise. That is why I went with a body lift vs. coil spacers.
In my opinion... and I'm sure this is my opinion... haha. I would lose the spacer kit, sell it actually, and add that money towards a 4 inch suspension lift which will easily clear 33's and you'll have great flex.
By adding the 2 inch wheel spacers on my rig, it helped to make it more stable and my Ruby rims don't cause my tires to rub anymore... coarse the extra 2 inches of lift help too.( I have 6 total now) When you lift a Jeep 4 inches or more it will cause the axles to become off center so you will need to buy adjustable front and rear trackbars (which I do not have, but am getting soon) this is where the squirrlyness comes in. The adjustable trackbars will fix that, and the front one will fix any bumpsteer. They usually don't come with the cheaper (money wise, not quality) kits.
I don't think coil spacers and a body lift would be wise together. Either one in addition to a suspension lift is okay, depending if you want to go with a bellup kit or get rid of your transfer case drop kit, but I would never go more than 2 inches on a body lift.
If I had to do it over again, this is what I would do something like this or similiar...
3.5 inch RE SuperFlex. (actually I would want the 4.5 as I want to go up to 35's someday)
http://www.quadratec.com/products/16300_404.htm#details. $879 on Quadratec. I bet 4wheerssupply would give you a great deal. Never buy anything from Quadratec, they are pricey and add rediculous amounts on for shipping and surcharges.... unless you like throwing your money away.
1 or 2 inch body lift (performance accessories) ( I would say 1inch, but with 2 you'll get more flex) $156.99 including shipping. 4wd.com
1.5 to 2 inch wheelspacers @$150 my 2 in spacers where $164.51 including shipping EBAY (no need to buy the poison spiders) you'll pay an extra $100 just for the name. Will give you stablity and allow you to keep those pretty Ruby wheels.
Front and Rear adjustable trackbars. $$$ depends on brand you buy. upwards of $250 for both.
I would do the work yourself, or at least get some club members to help. We'll do a much better job than a shop, plus you'd be there to supervise. Shops just want you in and out, then your money... doesn't matter who they are or what club members recommend them, they just want to get you in and out, and your jeep will just be a number.. Unless the guy who owns the shop is one of your best buds, then you might get some special treatment. Jeepdog (he will like me nominating him ) has an awesome shadetree shop, I am sure he would be glad to help you, us, or anybody you wanted to ask come out there and get your rig fixed up, plus a hamburger and soda is alot cheaper than $50++/hour for labor.
Here are some 4 inch kits from a store on Ebay I have bought from before:
I'm not a Rough Country salesman.. but these are priced great and after a quick scan through various kits don't see a better bang for your buck than these.
Lift 1This is is pretty sweet, you get front and rear upper and lower ADJUSTABLE control arms... lot of bang for your buck there ...
Lift 2