I actually had a complete 22RTE and everything to do the swap for my 22R, sitting in my garage for 2 yrs, but finally decided against it. A turbo just isn't right for a rockcrawler.
If you just want more HP for a mainly street truck, that's different.
You can get kits to convert a 22RE to turbo, or find a complete 22RTE and swap. Either way it's a bit of work.