2 inch lift won't hurt a thing. I sure like Racertech Lifts.
Any reason as to why you need spacers? If you don't need em then leave em.
If you need em to run bigger tires? Well then by all means. Unless you can find some offest Wheels. They do add stress to the Hubs. Some run em for a long time with no ill effects, but some have issues. So again, if you need em, they do come in 1 1/2 and that will clear your rubbing issues on the rear motormount with bigger tires.