I went with a Spicer long travel slip. I think it's 7" total travel. The only issue is then you have a 1310 u joint rather than Toyota but that hasn't been an issue. The slip itself looks super burly. I think I spent around $200 total to have it installed.
Be careful to avoid "agricultural" splines if you ever drive a little faster in 4wd. That will give you vibes. Probably doesn't matter if you are only rock crawling in 4wd.
